Refrigerator

Abstract

The present invention relates to a refrigerator characterized by comprising: a box in which a storage chamber is formed; a door for opening and closing the storage chamber; the hinge is connected with the door and the box body; the door includes: a front panel forming a front surface of the door through which light can pass; the door lining is arranged behind the front panel and forms the back surface of the door; an upper cap forming a top surface of the door, the hinge shaft being coupled to the upper cap; a first operation sensing device which is provided inside the door and senses the approach of a user; the second operation sensing device is arranged in the door and is used for sensing the operation of a user; a PCB is arranged in the door, and the first operation sensing device and the second operation sensing device are both installed on the PCB; an electric wire connected to the PCB is guided to the outside of the door through the hinge.

Description

Technical Field

[0001] The present invention relates to a refrigerator. Background Art

[0002] Generally, a refrigerator is a household appliance that can store food at low temperatures in an internal storage space shielded by a door. To this end, the refrigerator uses cold air generated by heat exchange with a refrigerant circulating in a refrigeration cycle to cool the interior of the storage space, thereby preserving the stored food in optimal condition.

[0003] Recent refrigerators have become larger and more multifunctional as dietary habits change and products become more sophisticated, and refrigerators with various structures and convenient devices that improve user convenience and effectively use internal space are constantly emerging.

[0004] As a representative, various functions can be provided by arranging various electrical components such as various sensors, heaters, and lights on the door of the refrigerator. In addition, the wires connected to these electrical components can be guided to the cabinet side through the hinge of the door.

[0005] However, if the number of electrical components increases, the diameter of the hinge shaft through which the power supply line passes becomes larger, so the door corners protrude more, which may cause the door corners to be interfered with by adjacent walls, furniture, etc. during the door rotation process.

[0006] Furthermore, there is also a problem that an additional wire arrangement structure is required for passing a plurality of wires in order to prevent interference when the door is opened. Summary of the Invention

[0007] An object of the embodiments of the present invention is to provide a refrigerator in which wires connected to a plurality of electrical components inside a door can pass through a hinge shaft and be led to a refrigerator body.

[0008] Another object of embodiments of the present invention is to provide a refrigerator that prevents interference of door corners when the door is rotated by reducing the number of wires connected to electrical components inside the door.

[0009] Another object of the embodiments of the present invention is to provide a refrigerator in which a plurality of operation sensing devices can be easily configured.

[0010] A refrigerator according to an embodiment of the present invention may include: a body forming a storage chamber; a door for opening and closing the storage chamber; and a hinge for connecting the door and the body; the door may include: a front panel forming the front side of the door and through which light can pass; a door lining arranged behind the front panel and forming the back side of the door; an upper cap forming the top surface of the door, and the hinge shaft being combined with the upper cap; a first operation sensing device arranged inside the door for sensing the approach of a user; and a second operation sensing device arranged inside the door for sensing the operation of the user; a PCB may be arranged inside the door, and the first operation sensing device and the second operation sensing device are both mounted on the PCB; the wires connected to the PCB can be guided to the outside of the door through the hinge.

[0011] The first operation sensing device may be a capacitive sensor that senses the approach of a user's body.

[0012] The second operation sensing device may be a vibration sensing sensor that senses a tapping operation of a user.

[0013] The capacitive sensor and the vibration sensing sensor may be arranged toward the front panel.

[0014] The wires may include power lines, signal lines, and ground lines.

[0015] The door may be provided with an opening device for restricting the door and releasing the restriction; the opening device may be activated according to a signal from the first operation sensing device.

[0016] The door lining may include a PCB opening for exposing the PCB rearward; and a PCB cover may be installed at the PCB opening to shield the PCB and the PCB opening.

[0017] The PCB may include a connector, and the electric wires may be detachably connected to the connector.

[0018] The PCB may include a service connector for checking states of the PCB and the first and second operation sensing devices, and the service connector may be exposed through the PCB opening.

[0019] The connector may be disposed at an upper end of the PCB, and the service connector may be configured at a lower position than the connector.

[0020] The connector and the service connector may be disposed on one of two sides of the PCB that faces the opening of the PCB.

[0021] The door lining may further include a gasket groove, which is recessed along the periphery of the back side of the door, and a gasket is installed in the gasket groove; the PCB opening may be configured to overlap with the gasket groove; and a cover step portion may be formed on the PCB cover, which is connected to the gasket groove and contacts the gasket.

[0022] The door lining may include a PCB mounting portion that is recessed from the PCB opening toward the front panel to form a space for accommodating the PCB.

[0023] A guide hole may be formed in a position corresponding to the first operation sensing device in the front surface of the PCB mounting portion, and the guide hole may be shielded by the front panel.

[0024] A guide portion extending forward and contacting the back surface of the front panel may be formed at a periphery of the guide hole, and the first operation sensing device may be located in the guide hole.

[0025] A boss for fastening a screw passing through the PCB may be formed on the front surface of the PCB mounting portion; and the first operation sensing device and the guide hole may be aligned with each other when the screw is fastened.

[0026] The door may include a panel assembly, which covers the opening of the door lining and allows viewing of the rear space of the door; the panel assembly may include: the front panel; a rear panel, which is separated from the front panel and forms the back of the door; and a spacer, which is arranged along the periphery of the front panel and the rear panel and connects the front panel and the rear panel; thermal insulation material may be arranged along the periphery of the panel assembly inside the door.

[0027] The door lining may include a PCB mounting portion that is recessed forward and forms a space for arranging the PCB independently of the heat insulating material. The PCB mounting portion may be disposed between the spacer and a side surface of the door.

[0028] The PCB mounting portion may be provided on one of the left and right sides of the panel assembly, and may be formed on the side of the left and right sides that is away from the rotation axis of the door.

[0029] The first operation sensing device may be located at a height of 1m to 1.5m from the ground.

[0030] According to the refrigerator of the proposed embodiment, the following effects can be expected.

[0031] In the refrigerator of the embodiment of the present invention, even when multiple electrical components are disposed inside the door, multiple sensing devices can be disposed on the PCB and share electrical wires, thereby reducing the number of electrical wires introduced into the door. Thus, even when multiple electrical components are disposed, all electrical wires can be passed through the hinge pin and guided into the door.

[0032] In particular, even without increasing the diameter of the hinge pin, a plurality of electrical wires can be passed through the hinge pin. Thus, by maintaining the diameter of the hinge pin and preventing the corner of the door adjacent to the hinge pin from protruding, it is possible to prevent the corner of the door from colliding with adjacent walls, furniture, or other household appliances when the door is rotated to open or close.

[0033] Furthermore, the operation sensing device that detects both the user's approach and tapping operations is located on a single PCB, rather than separately. This allows the device to be installed by simply installing a single PCB. This improves assembly workability and production efficiency. In particular, since power and signal transmission to the operation sensing device can be achieved through a single wiring connection, assembly efficiency is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a front view of a refrigerator according to a first embodiment of the present invention.

[0035] Figure 2 It is a three-dimensional view of the refrigerator with its door opened.

[0036] Figure 3 It is a front view of the door.

[0037] Figure 4 is a rear view of the door.

[0038] Figure 5 This is an exploded perspective view of the door as viewed from the front in an exploded state.

[0039] Figure 6 This is an exploded perspective view of the door as viewed from the rear in an exploded state.

[0040] Figure 7 yes Figure 5 Magnified view of part A.

[0041] Figure 8 FIG. 1 is a partial perspective view showing a PCB mounting portion of the door.

[0042] Figure 9 yes Figure 6 Magnified view of part B.

[0043] Figure 10 It is along Figure 4 Stereoscopic image of the 10-10 line cut.

[0044] Figure 11 It is along Figure 4 Stereoscopic image of the 11-11 line cut.

[0045] Figure 12 2 is a diagram showing the wiring arrangement inside the door.

[0046] Figure 13 is a block diagram schematically showing the signal flow of the refrigerator.

[0047] Figure 14 It is a front view of a refrigerator door according to a second embodiment of the present invention.

[0048] Figure 15 It is a perspective view of a refrigerator according to a third embodiment of the present invention.

[0049] Figure 16 It is a three-dimensional view of the refrigerator with its door opened.

[0050] Figure 17 It is a perspective view of a refrigerator according to a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0051] Below, with the attached Figure 1 The specific embodiments of the present invention will now be described in detail. However, the present invention is not limited to the embodiments that illustrate the concept of the present invention, and other inventions or other embodiments within the scope of the concept of the present invention can be easily proposed by adding, changing, or deleting other components.

[0052] In addition, when describing the constituent elements of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. Such terms are only used to distinguish the constituent elements from other constituent elements and do not limit the nature, order, or sequence of the corresponding constituent elements. When it is recorded that a constituent element is "coupled," "combined," or "connected" to another constituent element, it should be understood that the constituent element can be directly coupled or connected to the other constituent element, but another constituent element can also be "coupled," "combined," or "connected" between the constituent elements.

[0053] Generally, refrigerators can be classified into various types according to the division of storage space and the configuration and structure of doors. In the following, for the sake of ease of explanation and understanding, the refrigerator with upper and lower storage spaces is used as the basis for description, but the present invention is not limited to this and can be applied to all types of refrigerators with doors.

[0054] Before explaining, let's first define the direction. In the embodiment of the present invention, Figure 2The direction of the front of the door seen in the figure is defined as the front, the direction toward the cabinet based on the front of the door can be defined as the back, the direction toward the ground where the refrigerator is installed can be defined as the bottom, and the direction away from the ground can be defined as the top.

[0055] Figure 1 It is a front view of a refrigerator according to a first embodiment of the present invention. Figure 2 It is a three-dimensional view of the refrigerator with its door opened.

[0056] As shown in the figures, the overall appearance of the refrigerator 1 according to the embodiment of the present invention may be formed by a body 10 forming a storage space and a door 20 for opening and closing the body 10 .

[0057] In the box body 10, the storage space may be divided in the vertical direction to form an upper storage space 11 and a lower storage space 12. As an example, the upper storage space 11 may be a refrigerator compartment, and the lower storage space may be a freezer compartment.

[0058] The door 20 may be configured to open and close the storage space, and may include an upper door 21 for opening and closing the upper storage space 11 and a lower door 22 for opening and closing the lower storage space 12 .

[0059] The upper door 21 and the lower door 22 are arranged in pairs on the left and right sides and are opened and closed by rotating. That is, the upper storage space 11 can be opened and closed by the pair of upper doors 21, and the lower storage space 12 can be opened and closed by the pair of lower doors 22.

[0060] The door 20 can be connected to the housing 10 and rotated via hinges 201, 202, and 203. For example, the upper end of the upper door 21 can be connected to the housing 10 via an upper hinge 201. The lower end of the upper door 21 and the upper end of the lower door 22 can be connected to the housing 10 via an intermediate hinge 202. The lower end of the lower door 22 can be connected to the housing 10 via a lower hinge 203.

[0061] Furthermore, at least one door of the upper door 21 may have a double-door structure (door-in-door) with overlapping doors. For example, the right upper door 21 may include a main door 23 for opening and closing the upper storage space 11, and a secondary door 30 that rotates in the same direction as the main door 23, located in front of the main door 23. This double-door structure can also be applied to the left door of the upper door 21 and the lower door 22.

[0062] An opening 230 may be formed in the main door 23. The opening 230 may extend through the main door 23 in the front-to-back direction and occupy most of the main door 23 except for the periphery. Furthermore, the opening 230 may communicate with the interior of the upper storage space 11. An additional storage device, such as a door basket 231, may also be provided in the opening 230.

[0063] In addition, the sub-door 30 may be disposed in front of the main door 23 and may be rotatably mounted on the main door 23. Thus, the opening 230 may be opened and closed by rotating the sub-door 30.

[0064] To this end, the secondary door 30 and the main door 23 may be connected via a hinge 301. The secondary door 30 may be rotatably mounted to the main door 23 via the hinge 301. The hinge 301 may connect the upper end of the main door 23 and the upper end of the secondary door 30. The hinge 301 may include a hinge plate 301a made of metal and a hinge pin 301b. Furthermore, the hinge 301 may include a hinge cover 301c made of plastic material that covers the hinge plate 301a.

[0065] The sub-door 30 may be formed to have the same lateral width and longitudinal width as the main door 23. Thus, when the sub-door 30 is closed, the sub-door 30 appears to be integral with the main door 23 and looks like a single door from the front.

[0066] On the other hand, the sub-door 30 may be provided with a door opening device 36 for opening and closing the sub-door 30. Furthermore, a first operation sensing device 45 for operating the door opening device 36 may be provided. As one example, the first operation sensing device 45 senses the approach of a user. When the user's hand approaches the front side of the door, the door opening device 36 may be activated to open the door 20. As another example, the first operation sensing device 45 may be a touch sensor that can sense a user's touch operation on the front side of the door 20. The first operation sensing device 45 may be referred to as a proximity sensing device, a touch sensing device, or a touch sensor.

[0067] The first operation sensing device 45 can be located above a set height H relative to the ground on which the refrigerator 1 is installed. As an example, the set height H can be a height of approximately 1m to 1.5m. The first operation sensing device 45 can be located at a height that is easily recognized when a user approaches and naturally extends his hand. In addition, the first operation sensing device 45 can be located on the left or right side of the door 20, away from the rotation axis of the door 20, that is, the extension line of the hinge pin 301b. Thus, when the user approaches and raises his hand to open the door 20, the door 20 can be opened naturally.

[0068] The structure of the auxiliary door 30 will be described in detail below with reference to the accompanying drawings. Furthermore, the present invention can also be applied to upper doors in single-door structures and any rotatable door. For ease of understanding and explanation, the following description will be based on the auxiliary door 30 and referred to as the door 20.

[0069] Figure 3 It is a front view of the door. Figure 4 is a rear view of the door. Figure 5 This is an exploded perspective view of the door as viewed from the front in an exploded state. Figure 6 This is an exploded perspective view of the door as viewed from the rear in an exploded state.

[0070] As shown in the figure, the door 20 may include: a panel assembly 31 forming the front surface; a door lining 32 forming the back surface; an upper cap 33 and a lower cap 34 forming the top and bottom surfaces of the door 20. In addition, the door 20 may also include side frames 35 forming the left and right side surfaces.

[0071] Furthermore, the interior of the door 20 may be filled with a heat insulating material 300. For example, the heat insulating material 300 may be formed by injecting a foaming liquid into the interior of a space formed by combining the panel assembly 31, the door lining 32, the upper cap 33, the lower cap 34, and the side frame 35. In particular, as Figure 10 As shown, the panel assembly 31 may be composed of a plurality of panels 311 , 312 , and 313 , and the heat insulating material 300 may be filled in the space between the outer side of the panel assembly 31 and the outer surface of the door 20 .

[0072] The panel assembly 31 may include a front panel 311 formed of a tempered glass material. The front panel 311 may be formed of a light-transmitting material. The panel assembly 31 may also include a rear panel 312 disposed behind the front panel 311. The rear panel 312 may form a portion of the back of the door 20 and shield a lining opening 320 formed in the door lining 32.

[0073] The front panel 311 and the rear panel 312 can be formed of a transparent material. For example, the front panel 311 and the rear panel 312 can be formed of tempered glass or insulating glass. Thus, the front panel 311 and the rear panel 312 can be formed so as to allow a view through the space behind the door 20. In other words, the panel assembly 31 can be formed transparent, thereby allowing a view through the space behind the door 20.

[0074] The panel assembly 31 may include a spacer 314 disposed along the periphery of the front panel 311 and the rear panel 312, forming an airtight space between the front panel 311 and the rear panel 312. Furthermore, a heat insulating layer 315 may be formed between the front panel 311 and the rear panel 312. For example, the heat insulating layer 315 may be in a vacuum state or in a state in which a heat insulating gas is injected.

[0075] The front panel 311 can be larger than the rear panel 312. As an example, the front panel 311 can form the entire front surface of the door 20. The front panel 311 can include a perspective portion 311a that allows viewing of the space behind the door, and a frame portion 311b formed along the periphery of the perspective portion 311a. The frame portion 311b can be opaque and can shield the spacer 314 and components outside the perspective portion 311a, such as the wires 47 and the PCB mounting portion 38, which will be described later.

[0076] Furthermore, the rear panel 312 may be formed at a position spaced rearward from the front panel 311 and shield the lining opening 320 of the door lining 32. In addition, the spacer 314 may be formed between the front panel 311 and the rear panel 312.

[0077] The door lining 32 may be formed of a plastic material. A lining opening 320 may be formed in the center of the door lining 32. The lining opening 320 may be sized to correspond to the size of the rear panel 312. Thus, the door lining 32 may form the back side of the door 20 and the interface between the outer side of the lining opening 320 and the outer periphery of the door 20.

[0078] A gasket 323 may be installed on the door liner 32 . The gasket 323 may seal the door 20 from the storage space when the door 20 is closed. The gasket 323 may be installed in a gasket groove 322 formed along the periphery of the liner opening 320 .

[0079] Furthermore, an opening device installation portion 324 for installing a door opening device 36 may be formed at a lower portion of the door lining 32 . The door opening device 36 may be activated by the first operation sensing device 45 and configured to open the door 20 .

[0080] For example, the door opening device 36 may be internally provided with a driving unit such as a motor that provides power, and the power from the driving unit may be transmitted to activate the locking device 37 that restricts the door 20. In this case, the activation of the driving unit may be achieved through sensing by the first operation sensing device 45. The door opening device 36 and the locking device 37 may have various structures.

[0081] As an example, the locking device 37 can be connected to the door opening device 36. Furthermore, the locking device 37 can be disposed at the lower end of the door 20. Furthermore, the locking device can be located above the handle 221 of the lower door 22. The locking device 37 can be located on either side of the door 20, farther from the hinge axis.

[0082] The locking device 37 may include a housing 371 disposed on the door 20; an operating lever 372 rotatably mounted on the housing 371; a hook 374 engaged with the main door 23 or the housing 10 by operation of the operating lever 372; and a rod connecting portion 373 connected to the door opening device 36. Thus, the operation of the door opening device 36 can drive the operating lever 372, thereby releasing the restriction of the hook 374 and opening the door 20.

[0083] The operating lever 372 may be exposed at the lower end of the door 20 , and the remaining structure may be disposed inside the door 20 . Thus, the user may also directly operate the operating lever 372 to release the restriction of the door 20 , thereby opening the door 20 .

[0084] The upper and lower ends of the door lining 32 and the front panel 311 may be connected by the upper cap 33 and the lower cap 34. The lower cap 34 may be formed with a locking device mounting portion 341 for mounting the locking device 37. The bottom surface of the lower cap 34 may be recessed with a handle 342. The handle 342 may be configured to connect with the locking device 37. That is, the handle 342 and the locking device 37 may be continuously arranged in adjacent positions, thereby facilitating the release of the restriction and opening of the door 20. The operating lever 372 may also be arranged on the handle 342.

[0085] Furthermore, the upper cap 33 may be formed with a recessed hinge mounting portion 331 for mounting the hinge 301. Furthermore, the hinge mounting portion 331 may be formed with a hinge hole 332, into which the hinge pin 301b of the hinge 301 is inserted. The door 20 can rotate about the hinge pin 301b. Furthermore, the hinge pin 301b may be formed in the shape of a hollow tube, thereby creating a passage for the wires 47 of the electrical components within the door 20.

[0086] Furthermore, the left and right ends of the door lining 32 and the front panel 311 can be connected via the side frames 35. With the door lining 32, upper cap 33, lower cap 34, and side frames 35 assembled, the panel assembly 31 can be installed to form the front face of the door 20, with the lining opening 320 shielded. Furthermore, with the door lining 32, upper cap 33, lower cap 34, side frames 35, and panel assembly 31 fully assembled, foaming liquid can be injected through the injection port 333 of the upper cap 33 to form the thermal insulation material 300. Furthermore, an injection port cap 334 can be installed on the upper cap 33 to shield the injection port 333.

[0087] On the other hand, the door 20 may be provided with an operation sensing device 40 for sensing user operations. The operation sensing device 40 may be composed of a plurality of different sensing devices 44 and 45. This allows the user to operate the door 20 in various ways. Furthermore, the operation sensing device 40 is disposed inside the door 20 and is not exposed to the outside.

[0088] The operation sensing device 40 can be configured on a single PCB 41 and disposed in a PCB mounting portion 38 recessed in the door lining 32 . In addition, the open back side of the PCB mounting portion 38 can be shielded by a PCB cover 46 .

[0089] Hereinafter, the configuration structure of the operation sensing device 40 and the PCB 41 will be described in more detail with reference to the accompanying drawings.

[0090] Figure 7 yes Figure 5 Magnified view of part A. Figure 8 FIG. 1 is a partial perspective view showing a PCB mounting portion of the door. Figure 9 yes Figure 6 Magnified view of part B. Figure 10 It is along Figure 4 Stereoscopic image of the 10-10 line cut. Figure 11 It is along Figure 4 Stereoscopic image of the 11-11 line cut.

[0091] As shown in the figure, a plurality of the operation sensing devices 40 may be configured on a single PCB 41. As an example, the operation sensing device 40 may include a first operation sensing device 45 and a second operation sensing device 44.

[0092] The first operation sensing device 45 is used to sense the approach of a user's body, and can sense that the user approaches one side of the door 20 in order to open the door 20. As an example, the first operation sensing device 45 can be a capacitive sensor.

[0093] Therefore, it is possible to sense changes in the magnetic field that occur when the user's body is located near the first operation sensing device 45. The sensing by the first operation sensing device 45 can activate the door opening device 36 to open the door 20. As another example, the first operation sensing device 45 may also be a proximity sensor that senses the user's approach by emitting light or ultrasonic waves.

[0094] The first operation sensing device 45 may be provided at a position corresponding to the position of the user when raising his hand to operate the door. For example, the first operation sensing device 45 may be located at a set height H from the ground on which the refrigerator 1 is disposed.

[0095] The second operation sensing device 44 is used to sense a user's tapping operation and can be configured to sense vibrations generated when the user taps the panel assembly 31. As an example, the second operation sensing device 44 can be a vibration sensor. Of course, in addition to a vibration sensor, the second operation sensing device 44 can also be other sensing devices capable of sensing user operations.

[0096] The second operation sensing device 44 can be directly or indirectly connected to the front panel 311. Thus, user operation can be detected by sensing the vibration generated when the user taps the front panel 311. If the second operation sensing device 44 detects a user operation, the lighting devices 15 and 27 provided on the door 20 or the housing 10 are activated, thereby illuminating the space behind the door 20 and allowing the space behind the door 20 to be visible through the see-through portion. In other words, the lighting devices 15 and 27 can be turned on and off by the second operation sensing device 44.

[0097] As another example, the second operation sensing device 44 may be a microphone. The user operation may be sensed by sensing the sound generated when the user taps the front panel 311, and the lighting devices 15 and 27 may be turned on or off.

[0098] The first operation sensing device 45 and the second operation sensing device 44 can both be disposed on the front surface of the PCB 41. That is, when the PCB 41 is mounted on the door 20, the first operation sensing device 45 and the second operation sensing device 44 can face the back surface of the front panel 311. Furthermore, the first operation sensing device 45 and the second operation sensing device 44 can be disposed adjacent to the back surface of the front panel 311.

[0099] The first and second operation sensing devices 45, 44 can be mounted on a single PCB 41. Thus, power and signal transmission to both the first and second operation sensing devices 45, 44 can be achieved using wires 47 connected to the PCB 41. For example, the wires 47 connected to the PCB 41 can be a power line, a signal line, and a ground line. Thus, the plurality of operation sensing devices 40 mounted on the PCB 41 can be operated via three wires 47 connected to the PCB 41.

[0100] Furthermore, the PCB 41 may be provided with a connector 42 for connecting the wires 47. The connector 42 may be configured to allow the wires 47 to be removably connected to the PCB without the need for additional tools. To this end, a wire connector 471 may be provided at the end of the wire 47, which is mateable with the connector 42. Thus, simply by merging the wire connector 471 with the connector 42, a plurality of wires can be electrically connected to the PCB 41 at once.

[0101] The connector 42 may be disposed in a direction toward which the wires 47 are introduced. The connector 42 may be disposed at an upper end of the PCB 41, and the wires 47 may be connected at a shortest distance.

[0102] The connector 42 may be provided at the upper end of the back side of the PCB 41. A service connector 43 may be provided below the connector 42. Both the service connector 43 and the connector 42 may be provided at the back side of the PCB 41.

[0103] The service connector 43 is used to check the status of the PCB 41 and the operation sensors 44 and 45. It can be connected by an operator while the PCB 41 is mounted on the door 20. The service connector 43 can be positioned substantially in the center of the PCB 41. Furthermore, the service connector 43 can overlap at least a portion of a PCB opening 380 formed in the PCB mounting portion 38. As a result, when the PCB cover 46 is opened, the service connector 43 can be exposed through the PCB opening 380.

[0104] The door 20 may be formed with a PCB mounting portion 38 for accommodating the PCB 41. The PCB mounting portion 38 forms a space open to the rear and recessed to the front, allowing the PCB 41 to be positioned within. Furthermore, the PCB mounting portion 38 allows the PCB 41 to be positioned in a space separate from the space within the door 20 where the thermal insulation material 300 is positioned. This prevents the thermal insulation material 300 from penetrating the interior of the PCB mounting portion 38.

[0105] The PCB mounting portion 38 may be disposed on one of the left and right sides of the door 20 , or on the side farther from the rotation axis of the door 20 , or located in the middle of the door 20 in the vertical direction.

[0106] The PCB mounting portion 38 may be open at the back of the door 20 and recessed into the front panel 311 . Thus, the operation sensing devices 44 and 45 mounted on the PCB 41 may be disposed close to the front panel 311 .

[0107] As an example, the PCB mounting portion 38 may be formed on the door lining 32. The PCB mounting portion 38 may be formed by recessing one side of the door lining 32 toward the front. Furthermore, the door lining 32 may have a PCB opening 380 formed therein, corresponding to the open back side of the PCB mounting portion 38.

[0108] At least a portion of the PCB mounting portion 38 may overlap with the gasket groove 322. The gasket groove 322 may be formed along the periphery of the liner opening 320 and configured to pass through the PCB mounting portion 38. Furthermore, a portion of the gasket groove 322 may be interrupted by the PCB opening 380. Therefore, if the PCB cover 46 is installed to cover the PCB opening 380, a portion of the PCB opening may form a portion of the gasket groove 322.

[0109] Therefore, when the gasket 323 is installed, the gasket 323 can be installed along the gasket groove 322 of the door lining 32, and a portion of the gasket 323 can be configured to pass through the PCB cover 46. At this time, a cover step portion 463 can also be formed on the PCB cover 46, and the cover step portion 463 is connected to the gasket groove 322 and contacts the gasket 323.

[0110] The PCB cover 46 may include a cover body 461. The cover body 461 may be formed in a shape corresponding to the PCB opening 380 and cover the PCB opening 380. When the PCB cover 46 covers the PCB opening 380, the PCB cover 46 may be flush with the door lining 32.

[0111] The cover body 461 may include a stepped cover portion 463 through which the gasket 323 passes, and a cover exposed portion 462 that is exposed laterally from the gasket 323. Furthermore, a cover support portion 464 may protrude forward from the front of the cover body 461. The cover support portion 464 may contact the inner side of the PCB mounting portion 38.

[0112] Furthermore, a cover protrusion 465 for mounting the cover body 461 may be formed at a side end of the cover body 461. The cover protrusion 465 may contact the inner surface of the PCB opening 380 when the PCB cover 46 is mounted, thereby keeping the PCB cover 46 in a restricted state.

[0113] The PCB mounting portion 38 can be arranged in the space between the side end of the panel assembly 31 and the outer side surface of the door 20. That is, the PCB mounting portion 38 can be provided between the spacer 314 forming the circumference of the panel assembly 31 and the side frame 35. Furthermore, the PCB mounting portion 38 can be arranged behind the frame portion 311b. In addition, the wires 47 extending toward the PCB mounting portion 38 are also provided behind the frame portion 311b so as not to be exposed through the front panel 311. Furthermore, a reinforcement frame 354 made of steel material can also be formed on the inner side surface of the side frame 35. The PCB mounting portion 38 can be arranged to be separated from the side of the reinforcement frame 354.

[0114] The panel assembly 31 may include the front panel 311, the rear panel 312, and a spacer 314. A middle panel 313 may be provided between the front panel 311 and the rear panel 312. Due to the middle panel 313, a first heat insulating layer 315a and a second heat insulating layer 315b may be formed between the front panel 311 and the rear panel 312.

[0115] Furthermore, the spacers 314 may be disposed along the periphery of the front and back surfaces of the middle panel 313. The spacers 314 may include a first spacer 314a connecting the front panel 311 and the middle panel 313, and a second spacer 314b connecting the middle panel 313 and the rear panel 312. Furthermore, a sealant 316 may be applied to the periphery of the panel assembly 31 to ensure that the thermal insulation layer 315 is airtight.

[0116] The PCB mounting portion 38 may be recessed forward, and the recessed front side may be adjacent to the back side of the front panel 311. In addition, a frame opening 353 may be formed in the side frame 35 so that the PCB mounting portion 38 can contact the front panel 311 without interference. As an example, the side frame 35 may include: a panel support portion 351 that supports the front panel 311; and a side portion 352 that extends rearward from the outer end of the panel support portion 351 and is connected to the door lining 32. The frame opening 353 may be formed in the panel support portion 351. Therefore, the guide portion 384 described later may contact the front panel 311 through the frame opening 353.

[0117] A wire hole 385 for introducing the wire 47 may be formed on the top surface of the PCB mounting portion 38. The wire hole 385 is arranged at a position facing the connector 42, thereby making it easy to connect the wire 47 introduced through the wire hole 385 to the PCB 41.

[0118] A boss 382 may be formed on the front surface of the PCB mounting portion 38. A fastening hole 381 may be formed in the boss 382 for fastening a screw 412 that passes through the PCB 41. Multiple bosses 382 may be formed, spaced apart in the vertical direction. For example, one boss 382 may be formed at each diagonal corner of the upper and lower portions of the PCB mounting portion 38. The screw 412 passes through the screw hole 411 of the PCB 41 and is fastened to the boss 382, ​​thereby securely securing the PCB 41 within the PCB mounting portion 38.

[0119] The boss 382 may protrude at a predetermined height to separate the PCB 41 from the front surface of the PCB mounting portion 38 . Furthermore, by fastening the screw 412 , the PCB 41 may be positioned accurately within the PCB mounting portion 38 .

[0120] In addition, a guide hole 383 may be formed on the front surface of the PCB mounting portion 38 . The guide hole 383 may penetrate the front surface of the PCB mounting portion 38 at a position corresponding to the first operation sensing device 45 .

[0121] If the screw 412 is fastened to the PCB 41 , the PCB 41 is fixed to the PCB mounting portion 38 , and the first operation sensing device 45 can be aligned at a position corresponding to the guide hole 383 . Therefore, the first operation sensing device 45 can be located within the guide hole 383 .

[0122] The PCB mounting portion 38 may also be formed with a guide portion 384 that protrudes forward along the periphery of the guide hole 383. The protruding end of the guide portion 384 may contact the back surface of the front panel 311. Thus, the first operation sensing device 45 can be located within the enclosed space formed by the guide portion 384, effectively sensing changes in the magnetic field caused by the user's approach.

[0123] On the other hand, the second operation sensing device 44 may also contact the front surface of the PCB mounting portion 38. Furthermore, the PCB mounting portion 38 may be directly or indirectly connected to the front panel 311. Therefore, when a user taps the front panel 311, the vibration may be transmitted to the second operation sensing device 44.

[0124] As another embodiment, the first operation sensing device 45 and the second operation sensing device 44 may also have configuration positions different from those in the aforementioned embodiment.

[0125] The first operation sensing device 45 and the second operation sensing device 44 may both be configured on the same PCB 41 . Furthermore, the first operation sensing device 45 and the second operation sensing device 44 may both be configured on the same surface of the PCB 41 facing the front panel 31 .

[0126] The first operation sensing device 45 may be a device that senses the approach of a user. The second operation sensing device 44 may be a device that senses knocking or contact on the front surface of the door 20.

[0127] Furthermore, the first operation sensing device 45 and the second operation sensing device 44 can be spaced apart in the vertical direction. In this case, the first operation sensing device 45 can be located above the second operation sensing device 44. Furthermore, the distance between the first operation sensing device 45 and the second operation sensing device 44 can be greater than the sensing range of the first operation sensing device 45. In other words, the second operation sensing device 44 can be located below the first operation sensing device 45 and outside the sensing range of the first operation sensing device 45. This prevents misidentification of user operations when the user operates the first operation sensing device 45 or the second operation sensing device 44.

[0128] For example, when a user knocks on the front of the door 20 , the second operation sensing device 44 senses the operation and turns on the door light 27 so that the space behind the door 20 can be seen.

[0129] At this time, since the first operation sensing device 45 for sensing the user's approach is located above the second operation sensing device 44 and outside the sensing distance of the second operation sensing device 44, the user's hand for operating the second operation sensing device 44 is not sensed.

[0130] Therefore, even if the user stands in front of the door 20 and knocks or touches the front of the door 20 for the operation of the second operation sensing device 44, the first operation sensing device 45 can be prevented from misidentifying the user's hand and causing unexpected actions such as the operation of the door opening device 36.

[0131] In this way, considering the user operation sensing characteristics of the first operation sensing device 45 and the second operation sensing device 44, by locating the first operation sensing device 45 outside the sensing range of the second operation sensing device 44, user convenience can be improved and operation reliability can be ensured.

[0132] Hereinafter, the arrangement of the electric wires 47 of the refrigerator 1 having the above-described structure will be described.

[0133] Figure 12 2 is a diagram showing the wiring arrangement inside the door. Figure 13 is a block diagram schematically showing the signal flow of the refrigerator.

[0134] As shown in the figure, a main control unit 13 is provided in the housing 10. The main control unit 13 controls the driving unit 14, thereby controlling the overall operation of the refrigerator 1 and supplying power. In addition, the main control unit 13 can be connected to a refrigerator interior light 15 provided in the housing 10 and control the refrigerator interior light 15.

[0135] In addition, the wire 47 connecting the main control unit 13 and the electrical components inside the door 20 can be introduced into the door 20 through the hinge 301. At this time, the wire 47 can be introduced into the door 20 through the hinge pin 301b that serves as the rotation axis of the door 20.

[0136] As an example, the electrical components arranged on the door 20 may include the door opening device 36, PCB 41, door heater 39, and door light 27. Of course, the electrical components may also include other electrical devices provided on the door 20. The door heater 39 may operate to prevent condensation on the front of the panel assembly 31. The door heater 39 may be arranged on the back of the front panel 311. Furthermore, the door heater 39 may be arranged along the periphery of the spacer 314. The door light 27 is used to illuminate the rear space of the door 20. If the door light 27 is turned on, the rear space of the door 20 can be seen through the panel assembly 31. On the other hand, the door light 27, the door heater 39, and the door opening device 36 may be omitted as needed.

[0137] The PCB 41 may be configured with the first operation sensing device 45 and the second operation sensing device 44. Furthermore, wires 47 may be connected to the PCB 41. In this case, the wires 47 may include a power line, a signal line, and a ground line. Thus, power supply and control for the first operation sensing device 45 and the second operation sensing device 44 can be achieved through a single power line and signal line.

[0138] Therefore, the number of wires can be reduced to half compared to a structure in which wires are connected to each of the first operation sensing device 45 and the second operation sensing device 44. In particular, if a plurality of electrical components are disposed within the door 20, the wires connected to the plurality of electrical components can all pass through the limited inner diameter of the hinge pin 301b.

[0139] The wire 47 can be introduced into the inner side of the door 20 through the hinge hole 332 of the hinge mounting portion 331, extend through the upper portion of the door 20 to the side end of the door 20, and then extend downward from the side end of the door 20 and pass through the wire hole 385 to be guided into the interior of the PCB mounting portion 38. The wire 47 guided into the interior of the PCB mounting portion 38 can be connected to the connector 42 of the PCB 41.

[0140] Furthermore, the wires 47 can be arranged along the area blocked by the frame portion 311 b , and the PCB mounting portion 38 is also located in the area blocked by the frame portion 311 b , and thus will not be exposed to the outside.

[0141] The end of the electric wire 47 exposed outside the hinge mounting portion 331 may be provided with an electric wire connector 472. The electric wire connector 472 may be connected to the electric wire 47 extending from the housing 10. The electric wire connector 472 allows the door 20 to be separated from the housing 10, and facilitates connection between the electric wire 47 on the housing 10 side and the electric wire 47 on the door 20 side after the door 20 is installed.

[0142] On the other hand, the present invention may have various other embodiments in addition to the aforementioned embodiments. In other embodiments of the present invention, the remaining structures except for a part of the structure may be the same, and detailed description and illustration of the same structures may be omitted. In addition, the same reference numerals may be used for the same structures.

[0143] The following description will focus on the configurations that differ from the embodiments of the present invention, and configurations that are not shown or omitted can be understood from the aforementioned embodiments.

[0144] Figure 14 It is a front view of a refrigerator door according to a second embodiment of the present invention.

[0145] As shown in the figures, the refrigerator 1 according to the second embodiment of the present invention may include a door 30 ′ for opening and closing the storage space of the cabinet 10 .

[0146] The door 30' may include a panel assembly 31. Furthermore, the front surface of the door 30' may be formed by the front panel 311. The front panel 311 may be formed of a glass material, and a transparent portion 311a may be formed in the center of the front panel 311, and an opaque frame portion 311b may be formed along the edge of the transparent portion 311a.

[0147] The upper and lower ends of the door 30' may be provided with an upper cap 33 and a lower cap 34. Furthermore, the upper cap 33 may have a recessed hinge mounting portion 331 for mounting the hinge 301. The lower cap 34 may be provided with a locking device 37 for opening and closing the door 30'. A door opening device 36' may be provided on one side of the lower portion of the door 30' to activate the locking device 37.

[0148] Furthermore, an operation sensing device 40' may be provided at the lower portion of the door 30'. The operation sensing device 40' may include a PCB 41 on which a first operation sensing device 45 and a second operation sensing device 44 are mounted. Furthermore, a PCB mounting portion 38 may be formed within the door 30' to accommodate the PCB 41. The PCB 41 may be located in a position that does not interfere with the door opening device 36. The PCB 41 may be located between the lower end of the door 30' and the lower end of the see-through portion 311a.

[0149] As one example, the PCB 41 can be located at the lower center of the door 30'. As another example, the PCB 41 can be located on a side away from the rotation axis of the door 30' relative to the center of the door 30'. Thus, when a user approaches to open the door 30' or a user's body approaches, the first operation sensor 45 can effectively sense the approach.

[0150] In addition, the wires 47 connected to the PCB 41 may be guided downward through the hinge mounting portion 331 and may extend toward the PCB 41 at the lower end of the door 30 ′ and be connected to the PCB 41 .

[0151] At this time, the wires 47 and the PCB 41 may be both located behind the frame portion 311 b , so that the PCB 41 and the wires 47 are not exposed through the front panel 311 .

[0152] Figure 15 It is a perspective view of a refrigerator according to a third embodiment of the present invention. Figure 16 It is a three-dimensional view of the refrigerator with its door opened.

[0153] As shown in the figures, a refrigerator 1' according to the third embodiment of the present invention may include a body 10' forming a storage space and a door 20' for opening and closing the storage space.

[0154] The storage space of the box body 10' can be divided into upper and lower parts, thereby forming an upper storage space 11' and a lower storage space 12'. Furthermore, the door 20' can include an upper door 21' for opening and closing the upper storage space 11' and a lower door 22' for opening and closing the lower storage space 12'. Unlike the double doors of the aforementioned embodiment, the door 20' can be a single door that opens and closes the storage space.

[0155] The upper door 21′ can be rotatably coupled to the housing 10′ using hinges 201 and 202. The hinge 201 can have the same structure as the hinge 301 of the previous embodiment and can include a hinge plate 301a and a hinge pin 301b. Furthermore, the electrical wires 47 introduced into the door interior can pass through the hinge pin 301b. The upper door 21′ can include a panel assembly 31 that allows a see-through view of the interior. Furthermore, a storage member, such as a door basket 26, can be provided behind the upper door 21′.

[0156] The panel assembly 31 allows the user to view the space behind the upper door 21' even when the upper door 21' is closed. Furthermore, to visualize the space behind the upper door 21', door lights 27' may be provided on the left and right sides of the back of the upper door 21'. The space behind the upper door 21' can be selectively visualized by turning the door lights 27' on and off. To this end, the door lights 27' may be located on the left and right sides of the see-through portion 311a and mounted on the door lining 32 forming the back of the upper door 21'.

[0157] The panel assembly 31 may include a front panel 311 forming the front of the upper door 21' and a rear panel 312 forming the rear. A perspective portion 311a may be formed in the center of the front panel 311 to allow viewing of the space behind, and a frame portion 311b may be formed along the periphery of the perspective portion 311a.

[0158] The upper door 21' may include an upper cap 33 forming the top surface and a lower cap 34 forming the bottom surface. A hinge mounting portion 331 may be recessed in the upper cap 33 for mounting the hinge 201. The electrical wires 47 of the box 10' may pass through the hinge 201 and the hinge mounting portion 331 and into the interior of the upper door 21'.

[0159] The upper door 21′ may include a door lining 32 forming a back surface. The door lining 32 may be formed along the periphery of the rear panel 312. The rear panel 312 may cover a lining opening 320 formed in the door lining 32. Furthermore, the left and right sides of the upper door 21′ may be formed by side frames 35.

[0160] A door opening device 36 and a locking device 37 may be provided at the lower portion of the upper door 21′. The door opening device 36 may be activated by a first operation sensing device 45. Furthermore, the locking device 37 may be selectively restrained to the front side of the housing 10′. The locking device 37 may be activated by the door opening device 36 and selectively open the upper door 21′. In other words, the upper door 21′ may be automatically opened by the activation of the door opening device 36.

[0161] An operation sensing device 40 may be provided inside the upper door 21′. The operation sensing device 40 may include a PCB 41 on which a first operation sensing device 45 and a second operation sensing device 44 are mounted. The PCB 41 may be arranged in the space between the periphery of the panel assembly 31 and the side of the upper door 21′. Furthermore, the PCB 41 may be arranged at a position spaced apart from the ground by a set height H. The PCB 41 may be formed on one side of the left and right sides of the upper door 21′ that is away from the rotation axis of the upper door 21′. Furthermore, the PCB 41 may be arranged behind the frame portion 311b so as not to be exposed through the front panel 311.

[0162] A PCB cover 46 may be mounted on the door lining 32. The PCB cover 46 may be formed at a position corresponding to the PCB 41. Therefore, when the PCB cover 46 is opened, the PCB 41 is exposed. With the PCB cover 46 open, the PCB 41 can be assembled, installed, and inspected.

[0163] Meanwhile, the wires 47 of the housing 10' can be introduced into the interior of the upper door 21' through the hinge mounting portion 331 and the hinge 201. Furthermore, they can extend along the upper portion and side ends of the upper door 21' and connect to the PCB 41. In this case, the first and second operation sensing devices 45 and 44 can be powered and transmitted signals via the wires 47 connected to the PCB 41.

[0164] Figure 17 It is a perspective view of a refrigerator according to a fourth embodiment of the present invention.

[0165] As shown in the figures, a refrigerator 1' according to a fourth embodiment of the present invention may include a body 10' forming a storage space and a door 20' for opening and closing the storage space.

[0166] The structures of the box body 10 ′ and the door 20 ′ may be the same as those of the third embodiment or any one of the aforementioned embodiments.

[0167] The upper door 21' can be rotatably coupled to the housing 10' using hinges 201 and 202. Furthermore, the electrical wires 47 introduced into the upper door 21' can pass through the hinge pin 301b. The upper door 21' can include a panel assembly 31 that allows a transparent view of the interior. Furthermore, a storage member, such as a door basket 26, can be provided behind the upper door 21'.

[0168] The panel assembly 31 allows the user to check the space behind the upper door 21' even when the upper door 21' is closed. In addition, a door light 27' may be provided on the upper door 21', and the space behind the upper door 21' may be selectively visualized by turning the door light 27' on and off.

[0169] The panel assembly 31 may include a front panel 311 forming the front of the upper door 21' and a rear panel 312 forming the rear. A perspective portion 311a may be formed in the center of the front panel 311 to allow viewing of the space behind, and a frame portion 311b may be formed along the periphery of the perspective portion 311a.

[0170] A hinge mounting portion 331 for mounting the hinge 201 may be recessed at the upper end of the upper door 21 ′. The wires 47 of the box 10 ′ may be introduced into the interior of the upper door 21 ′ through the hinge 201 and the hinge mounting portion 331 .

[0171] The upper door 21′ may be provided with a door opening device 36 and a locking device 37. The door opening device 36 may be activated by the first operation sensing device 45. Furthermore, the locking device 37 may be selectively restrained to the front side of the housing 10′. The locking device 37 may be activated by the door opening device 36 and selectively open the upper door 21′. In other words, the upper door 21′ may be automatically opened by the activation of the door opening device 36.

[0172] An operation sensing device 40 ′ may be provided inside the upper door 21 ′. The operation sensing device 40 ′ may include a PCB 41 ′ on which a first operation sensing device 48 and a second operation sensing device 44 are mounted.

[0173] The PCB 41′ can be positioned in the space between the periphery of the panel assembly 31 and the side of the upper door 21′. Furthermore, the PCB 41′ can be positioned at a predetermined height H above the ground. Furthermore, the PCB 41′ can be formed on one of the left and right sides of the upper door 21′, away from the rotation axis of the upper door 21′. Furthermore, the PCB 41′ can be positioned behind the frame portion 311b so that it is not exposed through the front panel 311.

[0174] The PCB 41′ may be mounted with a first operation sensing device 48 and a second operation sensing device 44. In this case, the first operation sensing device 48 and the second operation sensing device 44 may be arranged in different directions. Furthermore, the first operation sensing device 48 and the second operation sensing device 44 may be of different types as devices capable of sensing user operations.

[0175] As an example, the first operation sensing device 48 may be disposed toward the side of the upper door 21 ′. The first operation sensing device 48 may be a touch sensor, and a capacitive or piezoelectric touch sensor may be used.

[0176] The first operation sensing device 48 may be formed to protrude rearward from a side end of the PCB 41 ′. If necessary, the PCB 41 ′ may be shaped so that the first operation sensing device 48 faces the side of the upper door 21 ′.

[0177] The first operation sensing device 48 can be disposed within the upper door 21' and in close contact with a side surface of the upper door 21'. Thus, when a user touches a corresponding location on the side surface of the upper door 21', the first operation sensing device 48 can sense the contact. For example, the first operation sensing device 48 can be mounted on a side frame 35 forming the side surface of the door.

[0178] On the other hand, a protrusion 353 can be formed on the side of the upper door 21' where the first operation sensing device 48 is located to guide the user to perform touch operations at the correct location. The side frame 35 can be formed of a metal material. The protrusion 353 can protrude laterally from the side of the side frame 35 and be exposed. The first operation sensing device 48 can be located inside the protrusion 353.

[0179] Of course, as needed, the protrusion 353 may not be formed on the side of the upper door 21 ′, and the position of the first operation sensing device 48 , ie, the touch position, may be indicated by surface processing or printing that can indicate the position.

[0180] The second operation sensing device 44 may be mounted on the PCB 41' and configured to face the front of the upper door 21'. The second operation sensing device 44 may also be configured to connect with the front panel 311 to effectively sense a tapping operation on the front panel.

[0181] As described above, the first sensing device 48 and the second sensing device 44 can be arranged to face different directions. In addition, the first operation sensing device 48 can be arranged on the side of the upper door 21 ′, and the second operation sensing device 44 can be arranged on the front of the upper door 21 ′.

[0182] The second operation sensing device 44 is used to sense the user's tapping operation on the front of the upper door 21', and can be composed of the vibration sensing sensor or microphone. The second operation sensing device 44 can be the same as the second operation sensing device 44 of the above embodiment.

[0183] By arranging the first operation sensing device 48 and the second operation sensing device 44 to face different directions from each other, there is an advantage in that erroneous operation by the user can be prevented and operational reliability can be ensured.

[0184] Specifically, by placing the first operation sensing device 48 on the side of the upper door 21' and the second operation sensing device 44 on the front of the upper door 21', it is possible to distinguish the sensing directions used to sense user operations. Thus, the first operation sensing device 48 and the second operation sensing device 44 can prevent misidentification and accurately perform actions that match the user's intended operation.

[0185] In particular, when the first operation sensing device 48 is a device for sensing the approach of a user and the second operation sensing device 44 is a device for sensing knocking or touching the front surface of the door, the above-mentioned effect can be more significant.

[0186] For example, when a user knocks on the front of the upper door 21 ′, the second operation sensing device may turn on the door light 41 ′ by sensing the knocking operation, thereby making the space behind the upper door 21 ′ visible.

[0187] In this case, the first operation sensing device 48 that senses the user's approach senses toward the side of the upper door 21', rather than the front of the upper door 21' where the user is located. Thus, even if the user approaches the front of the refrigerator 1' to operate the second operation sensing device 44, the first operation sensing device 48 is prevented from erroneously recognizing an unintended action, such as causing the door opening device 36 to operate.

[0188] In this way, taking into account the characteristics of sensing user operations possessed by the first operation sensing device 48 and the second operation sensing device 44, the first operation sensing device 48 and the second operation sensing device 44 are configured to sense in different directions from each other, thereby improving the user's convenience and ensuring operational reliability. On the other hand, the wires 47 of the box body 10' can be introduced into the interior of the upper door 21' through the hinge mounting portion 331 and the hinge 201. Moreover, they can extend along the upper part and side ends of the upper door 21' and be connected to the PCB41'. At this time, the first operation sensing device 48 and the second operation sensing device 44 can realize power supply and signal transmission through the wires 47 connected to the PCB41'.

Claims

1. A refrigerator, wherein: include: A box body is formed with a storage chamber; a door for opening and closing the storage chamber; as well as a hinge connecting the door and the box; The door comprises: a front panel forming the front face of the door, through which light can pass; a door lining, disposed behind the front panel to form the back of the door; an upper cap, forming the top surface of the door, and the hinge shaft is coupled to the upper cap; a first operation sensing device, disposed inside the door, for sensing the approach of a user; and a second operation sensing device, disposed inside the door, for sensing a user's operation; A PCB is provided inside the door, and the first operation sensing device and the second operation sensing device are both mounted on the PCB; Electric wires connected to the PCB are guided to the outside of the door through the hinge.

2. The refrigerator according to claim 1, wherein The door is provided with an opening device for restricting the door and releasing the restriction; The opening device is activated according to a signal from the first operation sensing device.

3. The refrigerator according to claim 1, wherein The door lining includes a PCB opening for exposing the PCB rearwardly; A PCB cover is installed in the PCB opening to shield the PCB and the PCB opening.

4. The refrigerator according to claim 3, wherein: The PCB includes: a connector to which the electric wire is detachably connected; and a service connector to check the status of the PCB and the first and second operation sensing devices; The service connector is exposed through the PCB opening.

5. The refrigerator according to claim 4, wherein The first operation sensing device and the second operation sensing device are arranged on the front side of the PCB; The connector and the service connector are disposed on the back side of the PCB.

6. The refrigerator according to claim 3, wherein The door lining further comprises a gasket groove, the gasket groove being recessed along the periphery of the back side of the door, and the gasket being mounted in the gasket groove; The PCB opening is configured to overlap the gasket groove; A cover step portion is formed on the PCB cover, and the cover step portion is connected to the gasket groove and contacts the gasket.

7. The refrigerator according to claim 3, wherein: The door lining further includes a PCB mounting portion, which is recessed from the PCB opening toward the front panel to form a space for accommodating the PCB.

8. The refrigerator according to claim 7, wherein A guide hole is formed in the front surface of the PCB mounting portion at a position corresponding to the first operation sensing device; The first operation sensing device is located in the guide hole; The guide hole is shielded by the front panel.

9. The refrigerator according to claim 8, wherein A convex column for fastening a screw passing through the PCB is formed on the front side of the PCB mounting portion; The first operation sensing device and the guide hole are aligned with each other when the screw is tightened.

10. The refrigerator according to claim 1, wherein The door includes a panel assembly, the panel assembly covering the opening of the door lining and allowing a view through the rear space of the door; The panel assembly includes: the front panel; a rear panel, spaced apart from the front panel, forming the back of the door; a spacer, disposed along peripheries of the front panel and the rear panel, connecting the front panel and the rear panel; and a heat-insulating material disposed inside the door and arranged along the periphery of the panel assembly; The door lining includes a PCB mounting portion, which is recessed forward and forms a space for the PCB to be arranged independently of the thermal insulation material; The PCB mounting portion is disposed on one of the left and right sides of the panel assembly, which is away from the rotation axis of the door, and is configured between the spacer and the side surface of the door.

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