CN114857832A - Refrigerator and control method thereof - Google Patents

Abstract

The invention discloses a refrigerator and a control method thereof, wherein the refrigerator comprises: a box door; the door opening mechanism is in driving connection with the box door and is used for opening the box door; the weight detection component is connected with the box door and is used for detecting the weight of the box door; and the controller is electrically coupled with the door opening mechanism and the weight detection part, and is used for controlling the door opening mechanism according to the weight of the box door. The refrigerator and the control method of the refrigerator effectively solve the problem that the door of the automatic door opening and closing structure of the refrigerator in the prior art is out of control.

Description

Refrigerator and control method thereof

Technical Field

The invention relates to the technical field of household appliances, in particular to a refrigerator and a control method of the refrigerator.

Background

The refrigerator needs to be in a sealed closing state frequently, and is very complicated in a time period with high opening and closing frequency. Therefore, the more the automatic opening and closing of the door of the refrigerator is required for consumers.

In the existing market products, a magnetic strip is arranged in a door seal of a common refrigerator, and a refrigerator door is automatically adsorbed on a refrigerator body in the manual closing process. One is that a rebound mechanical mechanism is added in a refrigerator hinge, and semi-automatic closing of a refrigerator door body is realized by means of force in the opening process of a user.

Among the prior art, the automatic switch door structure of refrigerator, when automatic opening, receive the inside and outside negative pressure of refrigerator and receive the push rod thrust influence, the thrust of opening the door of refrigerator can be predetermined very big, can let the chamber door of refrigerator be forced to open like this, the problem that the chamber door is out of control appears.

Disclosure of Invention

The embodiment of the invention provides a refrigerator and a control method of the refrigerator, and aims to solve the problem that a door of an automatic door opening and closing structure of the refrigerator is out of control in the prior art.

To achieve the above object, the present invention provides a refrigerator including: a box door; the door opening mechanism is in driving connection with the box door and is used for opening the box door; the weight detection component is connected with the box door and is used for detecting the weight of the box door; and the controller is electrically coupled with the door opening mechanism and the weight detection part, and is used for controlling the door opening mechanism according to the weight of the box door.

Furthermore, the refrigerator door can be rotatably connected to the refrigerator body of the refrigerator through a hinge structure; the weight detecting member is provided on the hinge structure.

Furthermore, the hinge structure comprises a door shaft which is fixedly connected to the box body, and the weight detection part is connected to the door shaft; the box door is provided with a rotating groove, and the box door is rotatably sleeved on the door shaft through the rotating groove.

Furthermore, the weight detection part comprises an elastic part and a gravity sensor, the door shaft is provided with a mounting groove, and the elastic part and the gravity sensor are both arranged in the mounting groove; one end of the elastic piece is connected with the bottom of the mounting groove, and the other end of the elastic piece is connected with the gravity sensor; one end of the gravity sensor is connected with the elastic piece, and the other end of the gravity sensor is connected with the bottom of the rotating groove.

Further, the notches of the door shaft and the mounting groove face the top of the box door, and the notch of the rotating groove faces the bottom of the box door.

Further, still include: and the angular velocity sensor is arranged on the hinge structure and is electrically coupled with the controller.

Further, the door opening mechanism comprises a rotating mechanism, and the rotating mechanism comprises a first driving motor, a transmission gear and a clutch; the transmission gear is meshed with the hinge structure, the first driving motor is in driving connection with the transmission gear through the clutch, and the first driving motor and the clutch are both electrically coupled with the controller.

Furthermore, the door opening mechanism also comprises a push rod mechanism, the push rod mechanism is connected to the refrigerator body of the refrigerator, and the push rod mechanism is used for pushing the refrigerator door open.

Further, the push rod mechanism includes: the output shaft of the second driving motor is connected with a cam; the first end of the push rod is matched with the cam in an abutting mode; the top block is used for pushing the box door and connected to the second end of the push rod; the reset spring is connected to the push rod, and the direction of the push rod towards the cam is the reset direction of the reset spring.

Furthermore, a magnetic component is arranged at the position of the box door corresponding to the top block; the top block is provided with magnetic force or a magnetic component is arranged on the top block.

Furthermore, the top block is pivoted with the push rod, and the top block can swing.

According to another aspect of the present invention, there is provided a control method of a refrigerator, the refrigerator being the above refrigerator, the control method including the steps of:

acquiring weight parameters of the box door;

and controlling the door opening mechanism according to the weight parameter.

Further, the step of controlling a door opening mechanism according to the weight parameter includes: and controlling the output torque of the door opening mechanism according to the weight parameter so as to open the door at a preset speed.

Through the gravity sensor who detects chamber door weight that sets up on the refrigerator to read the chamber door weight of refrigerator, according to the moment of force that weight parameter control mechanism applied the chamber door, realize that the chamber door of refrigerator is opened and is closed with the speed and the dynamics of matching, opening of chamber door can be opened under predetermined speed and dynamics, the process that the chamber door was opened and is closed is softer, the condition that the chamber door was opened or is closed suddenly can not appear, has solved the problem of out of control. Moreover, the box door is controllable all the time in the moving process, the safety is also improved, and the user experience is improved.

Drawings

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

fig. 2 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

FIG. 3 is an exploded view of the weight detecting part of the refrigerator according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a rotating mechanism of a refrigerator according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a push rod mechanism of a refrigerator according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a door pushed by a push rod mechanism of a refrigerator according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and the examples, but without limiting the invention.

Referring to fig. 1 and 2, according to an embodiment of the present invention, there is provided a refrigerator including a door 11, a door opening mechanism 20, a weight detecting part 30, and a controller 40, the door opening mechanism 20 being in driving connection with the door 11, the door opening mechanism 20 being used to open the door 11. The weight detecting means 30 is connected to the door 11, the weight detecting means 30 detects the weight of the door 11, the controller 40 is electrically coupled to the door opening mechanism 20, the controller 40 is electrically coupled to the weight detecting means 30, and the controller 40 controls the door opening mechanism 20 according to the weight of the door 11.

Through the weight detection part who sets up detection chamber door weight on the refrigerator to read the chamber door weight of refrigerator, according to the moment of force that weight parameter control mechanism applied to the chamber door, realize that the chamber door of refrigerator is opened and is closed with the speed and the dynamics of matching, opening of chamber door can be opened under the speed and the dynamics of predetermineeing, the process that the chamber door was opened and is closed is softer, the chamber door can not appear and bounce suddenly and open or the condition of closing, has solved the problem of out of control. Moreover, the box door is controllable all the time in the moving process, the safety is also improved, and the user experience is improved.

Preferably, the door 11 is rotatably coupled to the cabinet 12 of the refrigerator by a hinge structure 13; the weight detecting member 30 is provided on the hinge structure 13. Since the door of the refrigerator is generally directly coupled to the cabinet by the hinge structure, the weight of the door can be most directly detected by providing the weight detecting member 30 to the hinge structure 13, and the conventional structure can be simplified by concentrating the structure on the hinge structure. When the weight detection component is maintained, the box door can be directly detached, and the maintenance is convenient.

Referring to fig. 3, the hinge structure 13 includes a door shaft 131, the door shaft 131 is fixedly connected to the case 12, and the weight detecting member 30 is connected to the door shaft 131; the box door 11 is provided with a rotating groove 111, and the box door 11 is rotatably sleeved on the door shaft 131 through the rotating groove 111. The refrigerator of this embodiment, through setting up the chamber door 11 and rotating groove 111 to the cooperation door axle 131 rotates, reaches hinge structure's rotatable effect, and door axle 131 has directly played the supporting role in this kind of structure, and the atress of the 131 of door axle is also balanced, so the structure is more stable. In the dismounting process, the dismounting can be completed by directly releasing the rotating groove from the door spindle, and the mounting only needs to directly sleeve the rotating groove on the door spindle to complete the rotating fit, so the structure is not only simple, but also the dismounting is convenient.

Preferably, the weight detecting member 30 includes an elastic member 31 and a gravity sensor 32, the door shaft 131 has a mounting groove 132, and both the elastic member 31 and the gravity sensor 32 are disposed in the mounting groove 132. One end of the elastic piece 31 is connected with the groove bottom of the mounting groove 132, and the other end is connected with the gravity sensor 32; one end of the gravity sensor 32 is connected to the elastic member 31, and the other end is connected to the bottom of the rotation groove 111. The gravity sensor 32 is used to measure the weight of the door, and the weight of the entire door is concentrated on the hinge structure, so that the gravity sensor is placed at the position of the hinge structure to directly measure the weight. The whole control process is as follows: the chamber door needs to open or close according to setting for the rotational speed, can receive the influence of chamber door weight (for example deposit too much beverage in the bottle frame of chamber door) in practical application, can increase or reduce a body rotational speed, therefore gravity sensor with behind the chamber door weight parameter feedback to control system (main control board), control system can convert out the moment of torsion that the motor should output. Then angular velocity sensor among the hinge structure can measure the small deviation of chamber door rotational speed and actual rotational speed this moment to feed back to the main control board, the main control board is according to the numerical value that angular velocity sensor came over and gravity sensor's numerical value again, finely tunes present rotational speed, can all open or close with suitable speed under the realization chamber door under any weight condition, avoids taking place to hit people or the bad user experience of user's latency overlength.

Preferably, the notches of the door shaft 131 and the mounting groove 132 are both directed toward the top of the door 11, and the notch of the rotation groove 111 is directed toward the bottom of the door 11. That is, the rotating groove 111 is downwardly fitted over the upwardly facing door shaft 131, and the specific orientation is as shown in fig. 3. The refrigerator of this embodiment, the embodiment of installing gravity detection part (including gravity sensor) in hinge structure is given, and this kind of structure can protect gravity sensor effectively, can also measure the relevant parameter of chamber door weight most directly, and it is also more convenient to maintain the dismouting, can simply change the part.

The refrigerator further includes an angular velocity sensor 50, the angular velocity sensor 50 being provided on the hinge structure 13, the angular velocity sensor 50 being electrically coupled with the controller 40. The hinge structure 13 is a structure at the position of the door rotation shaft, so that the angular velocity sensor 50 is disposed on the hinge structure 13, and can directly obtain the opening angle of the door and also directly determine the opening stroke of the door. If resistance (such as user interference) or obstacle is met in the process of automatically opening and closing the door, the angular velocity sensor identifies zero at the moment, the controller instructs to stop rotating, and the refrigerator door stops rotating at the moment to realize free hovering after meeting the resistance. At the moment, the controller commands to be switched to a manual mode, a user needs to continuously and manually complete the opening and closing of the refrigerator door body, or an automatic mode touch button on a control panel is clicked once, so that the safety and the reliability of the user and the product are improved, and the switching of different application scenes is realized.

The door opening mechanism 20 includes a rotating mechanism for rotating the door in both directions of the door opening direction and the door closing direction. As shown in fig. 4, the rotating mechanism includes a first driving motor 201, a transmission gear 202, and a clutch 203; the transmission gear 202 is meshed with the hinge structure 13, the first driving motor 201 is in driving connection with the transmission gear 202 through the clutch 203, and the first driving motor 201 and the clutch 203 are electrically coupled with the controller 40, so that the clutch 203 has the function of controlling connection and disconnection with the transmission gear, and the rotation can be performed to open, stop, close and the like according to the requirements of the controller.

If the angular velocity sensor recognizes zero when encountering resistance (such as user interference) or an obstacle in the process of automatically opening and closing the door, the controller instructs the clutch 203 to start and disconnect from the transmission gear 202, so that the first driving motor 201 is prevented from being locked and damaged. And meanwhile, the first driving motor 201 is instructed to stop, and at the moment, the refrigerator door stops rotating to realize free hovering after meeting a resistance.

The door opening mechanism 20 further includes a push rod mechanism, which is connected to the refrigerator body 12 and is used to push the door 11 open. The push rod mechanism is used for pushing the box door 11 away from the state of adsorbing the box body by a certain angle, the action of the push rod mechanism is mainly to overcome the acting force of negative pressure and adsorption, meanwhile, the push rod mechanism is also one of the components mainly controlled by the controller, the applied torque of the push rod mechanism can calculate all parameters, and the torque can slowly push the box door away instead of suddenly popping the box door open.

As shown in fig. 5 and 6, the push rod mechanism includes a second driving motor 211, a push rod 213, a top block 214 and a return spring 215, and an output shaft of the second driving motor 211 is connected with a cam 212; the first end of the push rod 213 is matched with the cam 212 in an abutting mode; the top block 214 is used for pushing the door 11, and the top block 214 is connected to the second end of the push rod 213; the return spring 215 is connected to the push rod 213, and the direction of the push rod 213 toward the cam 212 is the return direction of the return spring 215.

The second driving motor 211 drives the cam 212 to rotate, the cam 212 pushes the rod 214 to make a linear motion perpendicular to the back direction of the refrigerator door, the motion stroke of the rod 213 is in direct proportion to the opening angle of the refrigerator door, and the pushing force is applied and is greater than the force of the refrigerator door affected by negative pressure and adsorption.

Preferably, a magnetic component is arranged at the position of the door 11 corresponding to the top block 214; the top block 214 is provided with a magnetic force or the top block 214 is provided with a magnetic force component. The top block 214 and the magnetic force position (the dotted line area in fig. 6) pre-buried inside the box door are mutually attracted, the box door rotates to a certain angle and then stops, and the rotating mechanism takes over the next step of rotation.

The top block 214 is pivotally connected to the push rod 213, and the top block 214 can swing. The top block 214 can swing so that when the box body rotates to a certain angle, the top block 214 can be attracted with the magnetic force of the box door, the box door can be opened more softly, and user experience is improved. The output current of the push rod mechanism and the rotating mechanism can be exchanged between the positive pole and the negative pole, so that the two motors can rotate forwards and backwards, and the door opening and closing conversion of the door is realized.

Referring to fig. 7, the present invention further provides an embodiment of a control method of a refrigerator, where the refrigerator is the refrigerator of the above embodiment, and the control method includes the following steps:

s1: acquiring weight parameters of the box door; the weight parameters include mass, gravity, etc.

S2: and controlling the door opening mechanism according to the weight parameter.

According to the moment of force applied to the box door by the door opening mechanism under the control of the weight parameters, the box door of the refrigerator is opened and closed at the matched speed and force, the box door can be opened at the preset speed and force, the opening and closing process of the box door is softer, the situation that the box door pops open or is closed suddenly can not occur, and the problem of out of control is solved.

Preferably, step S2 includes:

and controlling the output torque of the door opening mechanism according to the weight parameter so as to open the door at a preset speed.

The box door is controllable all the time in the moving process, the safety is also improved, and the user experience is improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

Of course, the above is a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and refinements can be made without departing from the basic principle of the invention, and these modifications and refinements are also considered to be within the protective scope of the invention.

Claims (13)

1. A refrigerator, characterized by comprising:

a door (11);

the door opening mechanism (20), the door opening mechanism (20) is in driving connection with the box door (11), and the door opening mechanism (20) is used for opening the box door (11);

the weight detection component (30), the weight detection component (30) is connected with the box door (11), and the weight detection component (30) is used for detecting the weight of the box door (11);

a controller (40), the controller (40) being electrically coupled to the door opening mechanism (20), the controller (40) being electrically coupled to the weight detecting member (30), the controller (40) being configured to control the door opening mechanism (20) in accordance with the weight of the door (11).

2. The refrigerator according to claim 1,

the refrigerator door (11) is rotatably connected to a refrigerator body (12) of the refrigerator through a hinge structure (13);

the weight detecting member (30) is provided on the hinge structure (13).

3. The refrigerator according to claim 2,

the hinge structure (13) comprises a door shaft (131), the door shaft (131) is fixedly connected to the box body (12), and the weight detection part (30) is connected to the door shaft (131);

the door (11) is provided with a rotating groove (111), and the door (11) is rotatably sleeved on the door shaft (131) through the rotating groove (111).

4. The refrigerator according to claim 3,

the weight detection part (30) comprises an elastic piece (31) and a gravity sensor (32), the door shaft (131) is provided with a mounting groove (132), and the elastic piece (31) and the gravity sensor (32) are both arranged in the mounting groove (132);

one end of the elastic piece (31) is connected with the bottom of the mounting groove (132), and the other end of the elastic piece is connected with the gravity sensor (32);

one end of the gravity sensor (32) is connected with the elastic piece (31), and the other end of the gravity sensor is connected with the bottom of the rotating groove (111).

5. The refrigerator according to claim 4, wherein the door shaft (131) and the mounting groove (132) are both open toward the top of the door (11), and the rotation groove (111) is open toward the bottom of the door (11).

6. The refrigerator of claim 2, further comprising:

an angular velocity sensor (50), the angular velocity sensor (50) being disposed on the hinge structure (13), the angular velocity sensor (50) being electrically coupled with the controller (40).

7. The refrigerator according to claim 2 or 6, wherein the door opening mechanism (20) comprises a rotating mechanism including a first driving motor (201), a transmission gear (202), and a clutch (203); the transmission gear (202) is meshed with the hinge structure (13), the first driving motor (201) is in driving connection with the transmission gear (202) through a clutch (203), and both the first driving motor (201) and the clutch (203) are electrically coupled with the controller (40).

8. The refrigerator according to claim 1, wherein the door opening mechanism (20) further comprises a push rod mechanism connected to a cabinet (12) of the refrigerator, the push rod mechanism being for pushing open the door (11).

9. The refrigerator of claim 8, wherein the push rod mechanism comprises:

a second driving motor (211), wherein the output shaft of the second driving motor (211) is connected with a cam (212);

the first end of the push rod (213) is matched with the cam (212) in an abutting mode;

the top block (214) is used for pushing the box door (11), and the top block (214) is connected to the second end of the push rod (213);

the return spring (215) is connected to the push rod (213), and the direction of the push rod (213) towards the cam (212) is the return direction of the return spring (215).

10. The refrigerator according to claim 9,

a magnetic component is arranged at the position of the box door (11) corresponding to the top block (214);

the top block (214) is provided with magnetic force or a magnetic component is arranged on the top block (214).

11. The refrigerator according to claim 9, wherein the top block (214) is pivotally connected to the push rod (213), and the top block (214) is swingable.

12. A control method of a refrigerator, characterized in that the refrigerator is the refrigerator of any one of claims 1 to 11, the control method comprising the steps of:

acquiring weight parameters of the box door;

and controlling a door opening mechanism according to the weight parameter.

13. The control method according to claim 12, wherein the step of controlling the door opening mechanism according to the weight parameter includes:

and controlling the output torque of the door opening mechanism according to the weight parameter so as to open the door at a preset speed.

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