CN204006926U - Refrigerator - Google Patents

Abstract

The utility model provides a refrigerator, which includes a box body and a door body arranged on the box body, the door body includes an outer door and an inner door, the refrigerator includes an inductor, and a control board connected with the inductor in communication . A door lock whose unlocking or locking is controlled by a control board, the door lock includes an electromagnetic relay electrically connected to the control board, a magnet arranged opposite to the electromagnetic relay, and one of the electromagnetic relay and the magnet is arranged on the inner door and another on the outer door. After the utility model obtains the door-opening signal through the sensor, the control board controls the electromagnetic relay to energize to generate a magnetic field in the same direction as the magnet to repel the magnet and push the outer door to open; The relay passes electricity in the opposite direction to generate a magnetic field in the same direction as the magnet to attract the magnet, so that the outer door is tightly closed, preventing the outer door from opening automatically and causing cold leakage.

Description

refrigerator

technical field

The utility model relates to a refrigerator, in particular to a refrigerator with a door that can be easily opened.

Background technique

Existing refrigerators mostly use mechanical door lock switches, and the door needs to be pressed with a certain force by the hand to open the door. It is inconvenient to open the door when the user holds things with both hands or when there is water or oil on both hands.

Generally, the mechanical door lock and the mechanical push button need to be installed at the same horizontal position. Because the mechanical button needs to be at a position that is easily accessible to the user, it is impossible to install the mechanical door lock in the center of the door frame, which will eventually cause the door to close. The imbalance of the three points of the door body leads to the phenomenon of cold leakage caused by gaps after the door body is closed. In addition, every time the user opens the door, they need to apply a relatively large force on the mechanical button with their fingers, and the force is transmitted to the mechanical switch through the mechanical button. The mechanical button will shake during the stroke, and the user experience is poor.

In view of this, it is necessary to improve existing refrigerators to solve the above problems.

Utility model content

The purpose of the utility model is to provide a refrigerator with a door that can be easily opened.

In order to achieve the purpose of the above utility model, the utility model provides a refrigerator, including a box body, a door body arranged on the box body, the door body includes an outer door and an inner door, the refrigerator includes an inductor, and the A control board connected by sensor communication, a door lock controlled by the control board to unlock or lock, the door lock includes an electromagnetic relay electrically connected to the control board, a magnet arranged opposite to the electromagnetic relay, the electromagnetic relay and One of the magnets is disposed on the inner door, and the other is disposed on the outer door.

As a further improvement of the utility model, the electromagnetic relay is arranged on the inner door, and the magnet is arranged on the outer door.

As a further improvement of the utility model, the sensor is a touch sensor, an infrared sensor, a sound sensor, and a light sensor, so that a door-opening signal can be obtained when the human body lightly touches or approaches the refrigerator.

As a further improvement of the utility model, the door lock is arranged at a middle position of the door body in the height direction.

As a further improvement of the present utility model, the refrigerator is also provided with a prompting device to issue a prompt when the user approaches.

As a further improvement of the utility model, the prompting device is a blinkable indicator light and a loudspeaker.

As a further improvement of the present utility model, the refrigerator is further provided with a door open/close sensor communicated with the control panel to obtain a signal of opening or closing the outer door.

As a further improvement of the utility model, the door opening and closing sensor is a light sensor or a retractable mechanical part.

The beneficial effects of the utility model are: after the utility model obtains the door opening signal through the sensor, the control board controls the electromagnetic relay to energize to generate a magnetic field in the same direction as the magnet, so as to repel the magnet and push the outer door to open; The control board passes electricity in the opposite direction to the electromagnetic relay to generate a magnetic field in the same direction as the magnet to attract the magnet, so that the outer door is tightly closed, preventing the outer door from opening automatically and causing cold leakage .

Description of drawings

Fig. 1 is a schematic diagram of the assembly of the refrigerator door lock and the door body of the present invention.

Fig. 2 is a schematic diagram of the door lock of the refrigerator of the present invention when the outer door is opened.

Fig. 3 is a schematic diagram of the door lock of the refrigerator in Fig. 2 when the outer door is closed.

Detailed ways

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

Please refer to Fig. 1 to Fig. 3, in order to achieve the purpose of the above utility model, the utility model provides a refrigerator 100, including a box body 10, a door body 20 arranged on the box body 10, a sensor (not shown), A control board (not shown) that communicates with the sensor, and a door lock 30 that is unlocked or locked by the control board. The door body 20 includes an outer door 21 and an inner door 22 .

The door lock 30 includes an electromagnetic relay 31 electrically connected to the control board, and a magnet 32 opposite to the electromagnetic relay 31 . After receiving the door opening and closing signal from the sensor, the control board passes electricity in different directions to the electromagnetic relay 31 to generate a magnetic field in the same or opposite direction as the magnet 32, thereby attracting or repelling the magnet 32 , and then push the outer door 21 to open or close tightly. One of the electromagnetic relay 31 and the magnet 32 is disposed on the inner door 22 , and the other is disposed on the outer door 21 . In this embodiment, the electromagnetic relay 31 is arranged on the inner door 22, and the magnet 32 is arranged on the outer door 21, so as to avoid arranging too many wires on the door body. Certainly, the electromagnetic relay 31 can also be arranged on the outer door 21, and the magnet 32 is arranged on the inner door 22, so as to achieve the same effect.

The door lock 30 is arranged at the middle position of the door body 20 in the height direction, so that the force on the outer door 21 is balanced after closing. The sensor can be installed in a dislocation or at the same position as the electric door lock 30 , that is, it can be installed in a position suitable for the user's operation, which is convenient for the user to operate. Further, the refrigerator 100 may be provided with multiple sensors at multiple positions to suit different users.

The sensor, such as a touch sensor, an infrared sensor, a sound sensor, a light sensor, etc., can obtain a door opening signal when the human body touches or approaches the refrigerator lightly. Further, the door body 20 is also provided with a reminder device, and when the user approaches the refrigerator 100, a reminder is issued to remind the user to open the door. The prompting device is a blinkable indicator light, a loudspeaker, etc., so as to send out a signal prompting to open the door when the user approaches.

The sensor is a touch sensor, an infrared sensor, a sound sensor, and a light sensor so that a door opening signal can be obtained when the human body touches or approaches. The refrigerator 100 is also provided with a door opening and closing sensor (not shown) for sensing the opening or closing of the outer door 21 , and the opening and closing door sensor is a light sensor or a retractable mechanical part. The door open/close sensor is connected in communication with the control board.

Taking the combination of the touch sensor and the light sensor as an example, the structure and principle of realizing the automatic door opening of the present utility model are further described.

When the door body 20 is closed, when the user touches the touch switch with his hand or other parts, the touch sensor obtains a door opening signal and transmits it to the control board. The control board energizes the electromagnetic relay 31, and the electromagnetic relay 31 generates a magnetic field opposite to the magnet 32, and the magnet 32 moves away from the electromagnetic relay 31 under the action of the magnetic field of the electromagnetic relay 31, so as to Drive the outer door 21 to open away from the box body 10; provide assistance to the user and save effort. When the door 20 is opened, the light in the box 10 is enhanced, the light sensor obtains a door opening signal and transmits it to the control board, and the control board powers off the electromagnetic relay 31 .

When closing the door body 20, manually push the door, and the door body 20 is closed. At this time, the light in the box body 10 weakens, and the optical sensor obtains the door-closing signal and transmits it to the control board, and the control board passes to the electromagnetic relay 31 with an electric current in the opposite direction when opening the door, and the electromagnetic relay 31 generates A magnetic field that communicates magnetically with the magnet 32, and the magnet 32 is subjected to a force toward the electromagnetic relay 31 in the magnetic field of the electromagnetic relay 31, so that the outer door 21 receives a force toward the box body, tightly Closed to prevent the door body 20 from opening automatically, resulting in cold leakage phenomenon.

To sum up, after the utility model obtains the door opening signal through the sensor, the electromagnetic relay 31 is energized by the control board to generate a magnetic field in the same direction as the magnet 32, so as to repel the magnet 32 and push the outer door 21 to open; And described control panel passes the electricity of opposite direction to described electromagnetic relay 31 to generate the magnetic field identical with the direction of described magnet 32, to attract described magnet 32, makes described outer door 21 close tightly, prevents outer door 21 from automatically Open, resulting in leakage phenomenon.

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

Claims (8)

1. a refrigerator, comprise casing, be arranged on the door body on casing, described door body comprises external door and inside door, it is characterized in that: described refrigerator comprises inductor, the control panel being connected with described inductor communication, by control panel, controlled the door lock of release or locking, described door lock comprises the electromagnetic relay with described control panel electrical connection, the magnet being oppositely arranged with described electromagnetic relay, one in described electromagnetic relay and described magnet is arranged on described inside door, and another is arranged on described external door.

2. refrigerator according to claim 1, is characterized in that: described electromagnetic relay is arranged on described inside door, and described magnet is arranged on described external door.

3. refrigerator according to claim 1, is characterized in that: described inductor is touch inductor, infrared inductor, sound inductor, optical inductor, to touch or to approach refrigerator at human body, can obtain enabling signal.

4. refrigerator according to claim 1, is characterized in that: described door lock is arranged at the centre position of described door body in short transverse.

5. refrigerator according to claim 1, is characterized in that: described refrigerator is also provided with suggestion device, with user near time send prompting.

6. refrigerator according to claim 5, is characterized in that: the indicator lamp that described suggestion device is sparkling, loudspeaker.

7. refrigerator according to claim 1, is characterized in that: described refrigerator is also provided with the switch gate sensor being connected with described control panel communication, the signal opening or closing to obtain described external door.

8. refrigerator according to claim 7, is characterized in that: described switch gate sensor is optical inductor or telescopic mechanical parts.