CN106546051A - Refrigerator and its automatic door opening control method - Google Patents

Abstract

The invention provides a refrigerator, comprising a box body, an upper refrigeration compartment/lower refrigeration compartment, an upper door, a drawer, a drawer door, a driving system for driving the drawer door to automatically open, and an induction switch, which is arranged at the bottom of the upper door , the top of the drawer door is provided with a hidden handle, and the effective sensing area of the sensor switch is located in the dark handle or at the front side of the dark handle; the refrigerator also includes a reminder; when the sensor switch is in the working state, the sensor switch can detect that the trigger is placed The trigger signal sent in the effective sensing area starts the driving system and the prompter; when the sensing switch is in the closed state, the sensing switch does not detect the trigger signal sent by the trigger being placed in the effective sensing area, or the sensing switch detects the trigger The trigger signal is sent when the object is placed in the effective sensing area, but the drive system and the prompter are not started. Therefore, the refrigerator can prevent the sensor switch from being stained, and can also send a prompt message to inform the user when the sensor switch is triggered.

Description

Refrigerator and automatic door opening control method thereof

technical field

The invention relates to the field of home appliances, in particular to a refrigerator capable of automatically opening the door and a control method for automatically opening the door.

Background technique

With the improvement of people's quality of life, the convenience of refrigerators has attracted more and more attention from consumers, and the automatic door opening of refrigerators caters to the market consumer demand. In order to make it more convenient to use, the automatic door opening switch has also been upgraded from a contact type to an infrared type.

At present, the installation method of the induction switch on the market is: to realize the automatic door opening function of a drawer door, install the induction switch on the drawer door body, and install the infrared switch in the hidden handle of the door, when the hand is placed When it is on the handle, it can realize the additional related functions corresponding to the door body. However, dirty water and dirty things are easy to fall on the hidden handle, which affects the tactile feeling of opening the door; after opening the door, it will also cause induction errors when taking things, resulting in poor reliability of the entire infrared switch system; Whether the infrared switch has started working.

In view of this, it is necessary to improve the existing refrigerator and its automatic door opening control method to solve the above problems.

Contents of the invention

The object of the present invention is to provide a refrigerator capable of automatically opening the door and a control method for automatically opening the door.

In order to achieve the purpose of the above invention, the present invention provides a refrigerator, which includes a box body, an upper refrigeration compartment and a lower refrigeration compartment located in the box, an upper door for opening or closing the upper refrigeration compartment, and an upper door located in the lower refrigeration compartment. The drawer in the refrigerated compartment, the drawer door that opens or closes the lower refrigerated compartment, the drive system that is cooperatively arranged between the box body and the drawer door to drive the drawer door to automatically open, and the drive The remote sensing non-contact trigger induction switch connected by system communication; the induction switch is arranged at the bottom of the upper door, the top of the drawer door is provided with a hidden handle, and the effective sensing area of the induction switch is located in the hidden handle or Located on the front side of the hidden handle; the refrigerator also includes a prompter connected in communication with the sensor switch; the sensor switch has a working state and an off state, and when the sensor switch is in the working state, the sensor switch can detect The trigger signal is sent when the trigger is placed in the effective sensing area and starts the drive system and the prompter; when the sensor switch is in the off state, the sensor switch does not detect that the trigger is placed in the effective sensing area and sends out trigger signal, or the sensor switch detects the trigger signal sent by the trigger being placed in the effective sensing area but does not start the drive system and the prompter.

As a further improvement of the present invention, the prompter is a lighting lamp, and the lighting lamp is located at the bottom of the upper door.

As a further improvement of the present invention, the upper door has a lower decorative strip at the bottom, and the induction switch and the lighting lamp are arranged on the lower decorative strip.

As a further improvement of the present invention, the refrigerator has several induction switches and several lighting lamps arranged at intervals in the width direction of the upper door, and the lighting lamps and the induction switches are alternately arranged along the width direction of the upper door.

As a further improvement of the present invention, the effective sensing areas of adjacent induction switches are seamlessly connected, and the total effective sensing area of several induction switches has no induction blind area in the width direction of the drawer door.

As a further improvement of the present invention, the lower decorative strip is provided with an upwardly recessed installation part, an installation box located in the installation part for installing the induction switch and the lighting lamp, and matched with the installation part The buckle cover is provided with a through hole at a position corresponding to the induction switch and the lighting lamp.

As a further improvement of the present invention, the upper door has side trim strips on both sides, the bottom of the side trim strips is located at the bottom of the drawer door, and the induction switch and the lighting lamp are arranged on at least one of the side trim strips. Bottom of trim.

As a further improvement of the present invention, the upper door has a lower trim strip at the bottom, side trim strips on both sides, the bottom of the side trim strip is located at the bottom of the drawer door, the induction switch and the lighting lamp The middle part is arranged on the lower decorative strip, and the other part is arranged on the bottom of the side decorative strip.

As a further improvement of the present invention, the induction switch is an infrared induction switch or a photoelectric receiving tube.

In order to achieve the purpose of the above invention, the present invention also provides a method for controlling automatic door opening of a refrigerator, which includes the following steps: S1: Detect whether there is a trigger signal sent by a trigger placed in the effective sensing area, if so, turn to S2; S2: The induction switch is triggered and then the prompter is started to start the drive system at the same time, the prompter sends out the prompt information that the induction switch is triggered, and the induction switch is turned into a closed state at the same time; S3: Detect whether the drawer door is closed, if so, Then the induction switch turns into the working state, and turns to S1 at the same time; if not, the induction switch remains in the off state.

As a further improvement of the present invention, the prompter is a lighting lamp. Step S2 is specifically: the induction switch is triggered to start the lighting lamp and start the drive system at the same time. The induction switch is turned into the closed state; step S3 is specifically: detecting whether the drawer door is closed, if so, then proceeding to S2; if not, the lighting lamp is always on and the induction switch remains in the closed state.

As a further improvement of the present invention, the refrigerator has a plurality of induction switches arranged at intervals in the width direction of the upper door. Step S1 is specifically: when one of the induction switches detects that the trigger is placed in the effective induction area, it turns to S2.

As a further improvement of the present invention, the refrigerator has several induction switches arranged at intervals in the width direction of the upper door, and step S1 is specifically: wherein at least two of the induction switches detect that the trigger is placed into the effective induction area simultaneously or successively , turn to S2.

The beneficial effects of the present invention are: the present invention arranges the induction switch at the bottom of the upper door, and the effective induction area of the induction switch is located in the hidden handle or at the front side of the hidden handle, so that the user will When the hand reaches into the hidden handle of the drawer door or is located at the front side of the hidden handle, the sensor switch can receive the trigger signal of the hand and start the drive system to drive the drawer door to open automatically; Dirty water and other sundries falling in, oil stains on hands, etc. will not contaminate the induction switch, so that the induction switch can be kept clean for a long time and have high induction sensitivity. In addition, by setting a reminder, when the induction switch senses a trigger signal, the reminder will give a reminder in the form of vibration, sound, and light to inform the user that the induction switch has been activated, which is convenient for the user to get out of the drawer door. Open space.

Description of drawings

Fig. 1 is the overall structure diagram of the refrigerator of the present invention.

Fig. 2 is an exploded view of the upper door of the refrigerator shown in Fig. 1 .

Fig. 3 is a partial side view of the refrigerator shown in Fig. 1 .

Fig. 4 is a partial side view of another embodiment of the refrigerator shown in Fig. 1 .

Fig. 5 is a partial schematic view of the refrigerator shown in Fig. 1 .

Fig. 6 is a control method for automatic door opening of a refrigerator according to the present invention.

Fig. 7 is another automatic door opening control method of the refrigerator according to the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figs. 1 to 5, the refrigerator 100 of the present invention includes a box body 10, an upper refrigerating compartment and a lower refrigerating compartment adjacently arranged up and down in the box body 10, and the upper refrigerating compartment is opened or closed. The upper door 1 of the refrigerated compartment, the drawer located in the lower refrigerated compartment and the drawer door 2 for opening or closing the lower refrigerated compartment.

Please refer to the French refrigerator 100 shown in FIG. 1 in detail, which includes a first door 11 that is opened by rotation, a second door 12 that is opened by a drawer, and a third door 13 that is opened by a drawer. The adjacent upper door 1 and the drawer door 2 referred to in the present invention are respectively the first door 11 and the second door 12, or the adjacent upper door 1 and the drawer door 2 are respectively the second door 12 and the third door 13; 1 can be a door body that is opened by rotation, or a drawer door that can be opened by a drawer type, or a sliding door that can be opened by a push-pull type.

The refrigerator 100 also includes a drive system (not shown) that is cooperatively arranged between the box body 10 and the drawer door 2 to drive the drawer door 2 to automatically open, and an induction sensor that communicates with the drive system. switch 3. Wherein, the drive system adopts an automatic door opening system commonly used in the field, and is controlled by the induction switch 3 to automatically open the drawer door 2, and its specific structure will not be repeated here. In addition, "the driving system is cooperatively arranged between the box body 10 and the drawer door 2" can be understood as that the setting of the driving system can automatically open the drawer door 2, and the driving system can directly Acting on the box body 10 and the drawer door 2 to make the drawer door 2 open automatically, or the drive system indirectly drives the drawer door 2 to open automatically through other connection structures such as drawers and slide rails.

The inductive switch 3 has a working state and a closed state. When the drawer door 2 is in the closed state, the inductive switch 3 is in the working state and can detect a trigger signal sent by the user, and start the drive system to push the The drawer door 2 makes it open automatically; when the drawer is in the open state, the induction switch 3 is in the closed state and does not detect the trigger signal sent by the user, or detects the trigger signal sent by the user but does not start the drive system.

The switching mode of the induction switch 3 between the working state and the closed state includes but not limited to: the induction switch 3 has a detector for detecting the opening or closing of the drawer door 2, or the induction switch 3 is connected with a setting In the refrigerator 100, a detector for detecting the opening or closing of the drawer door 2 is connected in communication, and the induction switch 3 switches between two states according to the signal of opening or closing of the drawer door 2 detected by the detector; or When the drawer door 2 is opened and closed, respectively cut off and connect the circuit that provides power to the induction switch 3; or when the drawer door 2 is opened and closed, respectively increase and decrease the voltage supplied to the induction switch 3; Or when the drawer door 2 is opened or closed, the communication connection between the induction switch 3 and the drive system can be cut off and on.

The top of the drawer door 2 is provided with a concealed handle for pulling the drawer door 2 , and the induction switch 3 is arranged at the bottom of the upper door 1 . The induction switch 3 is an induction switch 3 triggered by remote sensing without contact, such as a photoelectric receiving tube, an infrared induction switch 3 and the like. Taking the infrared sensor switch 3 as an example, the effective infrared sensing range of the infrared switch can be adjusted in the distances of X, Y, and Z directions. The length of the adjustment distance depends on the design performance of different brands of infrared switches or the different distances of different models of doors. adjust to the actual situation. The present invention does not elaborate on the setting of the parameters of the infrared sensor switch 3 in detail. The inductive switch 3 spreads outwards from itself, so that the user can trigger the inductive area of the inductive switch 3 to be the effective inductive area 31; according to the position of the inductive switch 3 in which the effective inductive area 31 is located, the present invention provides two implementation modes .

As shown in FIG. 3 , the effective sensing area 31 is located in the concealed handle. In order to avoid interference, the sensing distance and angle of the induction switch 3 are adjusted as required, for example, the induction angle of the induction switch in the Y-Z plane is 10°, and the induction distance in the Z direction is 60mm; so that the effective induction area The boundary of the 31 field does not touch the bottom and the inner side wall of the hidden handle. When the trigger is placed in the hidden handle and is located in the effective sensing area 31, the induction switch 3 can be triggered, and at the same time it will not Malfunctions may occur due to the presence of hidden handles.

In the closed state of the drawer door 2, when the trigger is placed in the hidden handle to send a trigger signal, the sensor switch 3 is triggered, so that the sensor switch 3 activates the drive system to make the drawer door 2 body automatically open. The trigger is usually the user's hand, of course, the trigger may also be other items held by the user.

According to usage habits, when the drawer door 2 needs to be opened, the user naturally puts his hand into the hidden handle of the corresponding drawer door 2, and the sensor switch 3 can receive the trigger signal of the hand to start the drive system to drive the drawer door 2 It is automatically opened; it does not affect the user's usage habits, and it is also convenient for guests in the user's home to use it without knowing it. In addition, the dirty water and other sundries that usually fall into the hidden handle will not contaminate the induction switch 3, and at the same time, the oil stains on the user's hand will not contaminate the induction switch 3 when the user's hand is inserted into the hidden handle. Therefore, the inductive switch 3 can be kept clean for a long time and have high inductive sensitivity.

Further, the refrigerator 100 also includes a prompter 4 arranged at the bottom of the upper door 1 and communicated with the sensor switch 3 , when the sensor switch 3 senses a trigger signal, the prompter 4 is activated to make it Prompts are issued in the form of vibration, sound, and luminous lamps to inform the user that the induction switch 3 has been activated, which is convenient for the user to give up the space where the drawer door 2 is opened.

In this embodiment, the prompter 4 is a lighting lamp 4, and the lighting lamp 4 is located at the bottom of the upper door 1; on the one hand, it can give a reminder that the induction switch 3 is activated; on the other hand, it can give the Lighting is provided inside the drawer for easy access to items.

The induction switch 3 and the lighting lamp 4 are arranged at the bottom of the lower door 2, and the specific structure is not limited, as long as the hidden handle falls into the effective induction area 31 of the induction switch 3, and the lighting Lamp 4 can illuminate the inside of the drawer.

As shown in Figures 1 to 5, the upper door 1 has an upper decorative strip 14 at the top, an inner lining 15, a lower decorative strip 16 at the bottom, and a front panel 17, and the induction switch 3 and the lighting lamp 4 are arranged on on the lower decorative strip 16. Specifically, the refrigerator 100 has several induction switches 3 and several lighting lamps 4 arranged at intervals along the width direction of the upper door 1 , that is, the X direction, and the lighting lamps 4 and the induction switches 3 are arranged along the width direction of the upper door 1 Staggered settings, evenly distributed. Each of the inductive switches 3 is large-angle radiation, and the radiation angle can be 60° or greater, without specific limitation; in the X-Z plane, the effective sensing areas 31 of adjacent inductive switches 3 are seamlessly connected, The total effective sensing area 31 of several induction switches 3 can realize seamless connection in the width direction of the drawer door 2 to avoid induction blind area in the effective sensing area 31 .

Those skilled in the art can understand that the so-called "seamless connection" means that a trigger such as a hand placed in any position of the effective sensing area 31 can be detected by the sensing switch 3; including the following situations : the effective sensing areas 31 of the adjacent sensing switches 3 partially overlap; or the edges of the effective sensing areas 31 of the adjacent sensing switches 3 are just next to each other; or the effective sensing of the adjacent sensing switches 3 There is a very small gap between the areas 31, but the gap is smaller than the general trigger, so that when the trigger is located at the gap, some triggers are located in the effective sensing area 31 on one side or both sides of the gap to trigger the corresponding trigger. The inductive switch 3.

According to the quantity and installation positions of the inductive switches 3, the total effective inductive area 31 can cover the middle part of the concealed handle or cover the entire area of the concealed handle. Therefore, when the user puts his hand into any position of the effective sensing area 31 in the concealed handle, the sensing switch 3 can be triggered. The radiation angles of several illuminating lamps are also partially overlapped, and all positions in the drawer can be illuminated without blind spots of bright light.

Specifically, the lower decorative strip 16 is provided with an upwardly recessed installation part (not shown), an installation box 161 located in the installation part for installing the induction switch 3 and the lighting lamp 4, and the A buckle cover 162 matched with the installation part, the position of the buckle cover 162 corresponding to the induction switch 3 and the lighting lamp 4 is provided with a through hole 163 and a protective cover 164 matched with the through hole 163 . The induction switch 3 is installed in the installation box 161, and radiates downward through the through hole 163 so that the hidden handle is located in its effective induction area 31, and the protective cover 164 plays a protective role for it but does not affect its induction effect . The illuminating lamp 4 is installed in the installation box 161 , and provides bright light to the opened drawer through the through hole 163 , and the protective cover 164 protects it but does not affect the light distribution.

In another embodiment not shown in the figure, the upper door 1 has side trim strips (not shown) on both sides, the bottom of the side trim strips is located at the bottom of the drawer door 2, and the sensor switch 3 And the illuminating lamp 4 is arranged at the bottom of at least one of the side trim strips. Preferably, the sensor switch 3 and the lighting lamp 4 are arranged on each of the side trim strips; thus, the sensor switch 3 can be triggered at any position in the hidden handle, and the drawer The brightness is relatively uniform.

In another non-illustrated embodiment, part of the induction switch 3 and the lighting lamp 4 can also be arranged on the lower trim strip 16, and part of it can be arranged on the side trim strip, so as to achieve above effect. Specifically, the lighting lamp 4 can be arranged on the lower molding 16, and the sensor switch 3 can be arranged on the side molding; or the induction switch 3 can be arranged on the lower molding 16, and the lighting lamp 4 can be arranged on On the side trim strip; or the lower trim strip 16 is provided with part of the induction switch 3 and part of the lighting lamp 4 , and at the same time, the side trim strip is also provided with a part of the induction switch 3 and part of the lighting lamp 4 .

As shown in Figure 4, it is another embodiment of the present invention. The difference with the above-mentioned embodiment is that the effective sensing area 31 is located in front of the hidden handle; in order to avoid interference, the sensing distance of the sensing switch 3 And the angle is adjusted as required, for example, the sensing angle of the sensing switch in the Y-Z plane is 10°, and its sensing distance is 60 mm, so that the boundary of the effective sensing area 31 does not touch the front side of the dark handle, the user When the hand is placed in front of the hidden handle, the induction switch 3 can be triggered; at the same time, there will be no false action due to the existence of the hidden handle or the human body. Other structures and design methods will not be repeated here.

As shown in FIG. 6, the present invention also provides an automatic door opening control method for the above-mentioned refrigerator 100, including the following steps:

S1: Detect whether there is a trigger signal sent by a trigger placed in the effective sensing area 31, and if so, turn to S2. Wherein a trigger such as a user's hand is placed in the hidden handle and detected by the sensor switch 3, a trigger signal is sent.

S2: The sensor switch 3 is triggered and then the prompter 4 is started to start the drive system at the same time, the prompter 4 sends a prompt message that the sensor switch 3 is triggered to prompt the user, and the sensor switch 3 is turned into the closed state at the same time, no The drive system will be restarted; the prompt information includes but not limited to vibration, prompt sound, bright light and so on.

S3: Detect whether the drawer door 2 is closed, if yes, the induction switch 3 is turned into the working state, and at the same time, turn into S1; if not, the induction switch 3 remains in the closed state.

As shown in Figure 7, when the prompter 4 is an illuminating lamp 4, step S2 specifically includes: the induction switch 3 is triggered and then the prompter 4 is activated and the driving system is started at the same time, and the illuminating lamp 4 first flashes several times to send out The prompt signal is always on to provide lighting in the drawer; step S3 is specifically: detect whether the drawer door 2 is closed, if so, then proceed to S2; if not, then the lighting lamp 4 is always on to provide lighting for the drawer, and the sensor Switch 3 remains closed.

The refrigerator 100 has several sensor switches 3 arranged at intervals along the width direction of the upper door 1, and S1 specifically means that when one of the sensor switches 3 detects that the trigger is placed in the effective sensing area 31, it is a trigger signal detected .

In addition, in order to prevent misoperation, the refrigerator 100 has several sensor switches 3 arranged at intervals along the width direction of the upper door 1. S1 is specifically that at least two of the sensor switches 3 detect that the trigger is placed into the effective sensing area. When within 31, the trigger signal is detected; wherein the two inductive switches 3 can sense the trigger at the same time, or the trigger moves in the effective sensing area 31 and the two inductive switches 3 sense the trigger successively.

In summary, the present invention arranges the induction switch 3 at the bottom of the upper door 1, so that when the user puts his hand into the hidden handle of the drawer door 2 or outside the hidden handle, the The inductive switch 3 can receive the trigger signal of the hand, and start the drive system to drive the drawer door 2 to open automatically; meanwhile, it can also prevent the dirty water and other sundries that usually fall into the hidden handle, the oil stains on the hands, etc. from contaminating the said drawer door. The inductive switch 3 can keep the inductive switch 3 clean for a long time and have high inductive sensitivity. In addition, by setting the prompter 4, when the induction switch 3 senses a trigger signal, the prompter 4 will give a reminder in the form of vibration, sound, and light to inform the user that the induction switch 3 has been activated, which is convenient for the user to give up. The drawer door 2 opens to the space.

The above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Without departing from the spirit and scope of the technical solution of the present invention.

Claims (13)

1. A refrigerator, comprising a box body, an upper refrigerating compartment and a lower refrigerating compartment located in the box, an upper door for opening or closing the upper refrigerating compartment, a drawer located in the lower refrigerating compartment, opening or closing Close the drawer door of the lower refrigerating compartment, a drive system that is cooperatively arranged between the box body and the drawer door to drive the drawer door to automatically open, and a remote sensing non-contact communication connection with the drive system Triggered induction switch; it is characterized in that: the induction switch is set at the bottom of the upper door, the top of the drawer door is provided with a hidden handle, and the effective sensing area of the induction switch is located in the dark handle or in the dark The front side of the handle; the refrigerator also includes a prompter connected in communication with the sensor switch; the sensor switch has a working state and an off state, and when the sensor switch is in the working state, the sensor switch can detect that the trigger is placed enter the trigger signal sent in the effective sensing area and start the drive system and the prompter; when the sensing switch is in the closed state, the sensing switch does not detect the trigger signal sent by the trigger being placed in the effective sensing area, Or the inductive switch detects the trigger signal sent by the trigger being placed in the effective sensing area but does not start the drive system and the prompter. 2. The refrigerator according to claim 1, wherein the prompter is a lighting lamp, and the lighting lamp is located at the bottom of the upper door. 3 . The refrigerator according to claim 2 , wherein the upper door has a lower decorative strip at the bottom, and the induction switch and the lighting lamp are arranged on the lower decorative strip. 4 . 4. The refrigerator according to claim 3, characterized in that: the refrigerator has several induction switches and several lighting lamps arranged at intervals in the width direction of the upper door, and the lighting lamps and the induction switches are arranged along the width direction of the upper door. Staggered settings. 5. The refrigerator according to claim 4, characterized in that: the effective sensing areas of adjacent induction switches are seamlessly connected, and the total effective sensing area of several induction switches has no induction blind area in the width direction of the drawer door . 6. The refrigerator according to claim 3, 4 or 5, characterized in that: the lower decorative strip is provided with an upwardly recessed installation part, which is located in the installation part for installation of the induction switch and the lighting The installation box of the lamp and the buckle cover matched with the installation part, the positions corresponding to the induction switch and the lighting lamp are provided with through holes on the buckle cover. 7. The refrigerator according to claim 2, wherein the upper door has side trim strips on both sides, the bottom of the side trim strips is located at the bottom of the drawer door, the sensor switch and the lighting The lamp is arranged at the bottom of at least one of the side moldings. 8. The refrigerator according to claim 2, wherein the upper door has a lower decorative strip at the bottom and side decorative strips at both sides, the bottom of the side decorative strip is located at the bottom of the drawer door, so Part of the induction switch and the lighting lamp are arranged on the lower trim strip, and the other part is arranged on the bottom of the side trim strip. 9. The refrigerator according to claim 1, wherein the induction switch is an infrared induction switch or a photoelectric receiving tube. 10. A method for controlling the automatic door opening of the refrigerator according to any one of claims 1 to 9, characterized in that it comprises the following steps: S1: Detect whether there is a trigger signal sent by a trigger placed in the effective sensing area, if so, turn to S2; S2: The induction switch is triggered and then the prompter is started to start the drive system at the same time, the prompter sends out a prompt message that the induction switch is triggered, and the induction switch is turned into a closed state at the same time; S3: Detect whether the drawer door is closed, if yes, the induction switch is transferred to the working state, and at the same time transfer to S1; if not, the induction switch remains in the closed state. 11. The automatic door opening control method of a refrigerator according to claim 10, characterized in that: the prompter is a lighting lamp, step S2 is specifically: the induction switch is triggered to start the lighting lamp and start the driving system at the same time, the The lighting light flashes several times and then stays on, and at the same time, the induction switch turns to the closed state; step S3 is specifically: check whether the drawer door is closed, if so, then turn to S2; if not, the lighting light is always on and the induction switch The switch remains off. 12. The automatic door opening control method of a refrigerator according to claim 10, characterized in that: the refrigerator has a plurality of induction switches arranged at intervals in the width direction of the upper door, step S1 is specifically: one of the induction switches detects a trigger When the object is placed in the effective sensing area, it will transfer to S2. 13. The automatic door opening control method of a refrigerator according to claim 10, characterized in that: the refrigerator has a plurality of induction switches arranged at intervals in the width direction of the upper door, step S1 is specifically: at least two of the induction switches simultaneously Or when it is successively detected that the triggers are placed in the effective sensing area, turn to S2.