Refrigerator
By routing wiring to bypass the capacitive touch sensor on the refrigerator door, the design mitigates noise-induced malfunctions, ensuring reliable operation and insulation performance.
Patent Information
- Application Number
- JP2024005383
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-07-30
AI Technical Summary
Refrigerators with capacitive electrostatic touch sensors in the operation unit are prone to malfunction due to noise generated by internal wiring, which can interfere with the sensor's functionality.
The refrigerator design includes a storage chamber door with a detection unit for human body proximity or contact, a substrate, and wiring that bypasses the detection unit, connecting to a connector on the opposite side of the door, avoiding direct contact and minimizing noise interference.
This configuration effectively suppresses malfunctions of the electrostatic touch sensor by reducing noise interference, maintaining sensor functionality while preserving the refrigerator's insulation and structural integrity.
Smart Images

Figure 2025111154000001_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present invention relate to a refrigerator.
Background Art
[0002] For example, the refrigerator disclosed in Patent Document 1 includes a refrigerator body forming a storage compartment, and a storage compartment door that rotatably closes the opening of the storage compartment. Further, this refrigerator includes an operation unit at the center of the lower part of the storage compartment door. Further, this refrigerator has a configuration in which wiring extending from inside the refrigerator body is introduced into the storage compartment door from a hinge portion that rotatably supports the storage compartment door and connected to the operation unit.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In modern refrigerators, a configuration in which a touch switch capable of detecting the proximity or contact of a human body based on a change in capacitance is provided in the operation unit is mainstream. However, in this configuration, there is a concern that the operation unit may malfunction due to noise such as electromagnetic waves generated from the wiring arranged inside the storage compartment door.
[0005] This embodiment provides a refrigerator capable of suppressing malfunction of the operation unit due to noise generated from the wiring arranged inside the storage compartment door.
Means for Solving the Problems
[0006] The refrigerator according to this embodiment includes a storage chamber for storing items, a storage chamber door capable of closing the opening of the storage chamber, a detection unit capable of detecting the proximity or contact of a human body based on a change in capacitance, a substrate provided with the detection unit, wiring connected to the substrate inside the storage chamber door, and an introduction hole through which the wiring can be introduced into the storage chamber door. The detection unit is disposed on the other side of the storage chamber door opposite to the side where the introduction hole is provided. The substrate has a connection portion to which the wiring is connected between the detection unit and the side surface of the other side of the storage chamber door. The wiring extends from the introduction hole inside the storage chamber door, bypasses the detection unit, and is connected to the connection portion.
Brief Description of the Drawings
[0007]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Embodiments for Carrying Out the Invention
[0008] Hereinafter, an embodiment of a refrigerator will be described with reference to the drawings. The refrigerator 10 illustrated in FIG. 1 forms a plurality of storage chambers 12, 13, 14, 15, 16 inside a rectangular box-shaped heat-insulating box body 11 that constitutes its outer shell. The heat-insulating box body 11 is an example of a refrigerator main body. Inside the storage chambers 12, 13, 14, 15, 16, it is possible to store various stored items such as foods. Although detailed illustration is omitted, the heat-insulating box body 11 has a configuration in which a heat-insulating material is provided between an inner box and an outer box. As the heat-insulating material constituting the heat-insulating box body 11, various heat-insulating materials such as, for example, a vacuum heat-insulating panel, foamed urethane, and a heat-insulating molded body formed of a heat-insulating material can be applied.
[0009] In this case, the storage chamber 12 is a refrigerating chamber maintained in the refrigerating temperature range. Hereinafter, the storage chamber 12 may sometimes be referred to as the "refrigerating chamber 12". In this case, the storage chamber 13 is a vegetable chamber maintained in the refrigerating temperature range. Hereinafter, the storage chamber 13 may sometimes be referred to as the "vegetable chamber 13". In this case, the storage chamber 14 is an ice-making chamber maintained in the freezing temperature range. Hereinafter, the storage chamber 14 may sometimes be referred to as the "ice-making chamber 14". In this case, the storage chamber 15 is a small freezing chamber maintained in the freezing temperature range. Hereinafter, the storage chamber 15 may sometimes be referred to as the "small freezing chamber 15". In this case, the storage chamber 16 is a large freezing chamber maintained in the freezing temperature range. Hereinafter, the storage chamber 16 may sometimes be referred to as the "large freezing chamber 16".
[0010] The refrigerating chamber 12 is the storage chamber provided at the uppermost part among the plurality of storage chambers 12, 13, 14, 15, 16 provided in the refrigerator 10. The vegetable chamber 13 is provided below the refrigerating chamber 12 and is located approximately at the center in the vertical direction of the heat-insulating box body 11. The ice-making chamber 14 and the small freezing chamber 15 are provided below the vegetable chamber 13 and are arranged along the lateral direction of the refrigerator 10 inside the heat-insulating box body 11. The large freezing chamber 16 is provided below the ice-making chamber 14 and the small freezing chamber 15 inside the heat-insulating box body 11. The large freezing chamber 16 is the storage chamber provided at the lowermost part among the plurality of storage chambers 12, 13, 14, 15, 16 provided in the refrigerator 10.
[0011] The refrigerator compartment 12 has a rectangular opening in its front surface. The front opening of the refrigerator compartment 12 is configured to be opened and closed by a storage compartment door that is rotatable in the left - right direction, namely, a so - called rotary - type one refrigerator compartment door 12D. The vegetable compartment 13 has a rectangular opening in its front surface. The front opening of the vegetable compartment 13 is configured to be opened and closed by a storage compartment door that is movable in the front - rear direction, namely, a so - called drawer - type vegetable compartment door 13D. The ice - making compartment 14 has a rectangular opening in its front surface. The front opening of the ice - making compartment 14 is configured to be opened and closed by a storage compartment door that is movable in the front - rear direction, namely, a so - called drawer - type ice - making compartment door 14D. The small freezer compartment 15 has a rectangular opening in its front surface. The front opening of the small freezer compartment 15 is configured to be opened and closed by a storage compartment door that is movable in the front - rear direction, namely, a so - called drawer - type small freezer compartment door 15D. The large freezer compartment 16 has an opening in its front surface. The front opening of the large freezer compartment 16 is configured to be opened and closed by a storage compartment door that is movable in the front - rear direction, namely, a so - called drawer - type large freezer compartment door 16D. The refrigerator compartment door 12D, the vegetable compartment door 13D, the ice - making compartment door 14D, the small freezer compartment door 15D, and the large freezer compartment door 16D are all examples of storage compartment doors that open and close the openings of the storage compartments.
[0012] The refrigerator compartment door 12D is configured to be rotatable such that one side in the left - right direction of the refrigerator compartment door 12D, in this case, the right - hand side end of the refrigerator compartment door 12D in the closed state closing the front opening of the refrigerator compartment 12, is pivotally supported by a pivot shaft when viewed from the front side of the refrigerator 10. That is, the refrigerator 10 is provided with hinge portions 21, 22 at the right - hand side end when viewed from the front side. The hinge portion 21 is provided at the upper part of the right end of the heat - insulating cabinet 11 and has a pivot shaft 21a extending downward. The hinge portion 22 is provided between the refrigerator compartment door 12D and the vegetable compartment door 13D at the right end of the heat - insulating cabinet 11 and has a pivot shaft 22a extending upward.
[0013] As described above, the refrigerator 10 has a configuration in which the pivot shafts 21a, 22a are provided on the heat - insulating cabinet 11 instead of on the refrigerator compartment door 12D. Also, the refrigerator compartment door 12D is configured to be rotatable in the left - right direction by having the right - hand side end, which is one side in the left - right direction, pivotally supported by the pivot shafts 21a, 22a.
[0014] The refrigerator door 12D is provided with an operation unit 31. The operation unit 31 is arranged at the left side portion which is the other side in the left - right direction of the refrigerator door 12D. More specifically, when viewing the refrigerator door 12D in the closed state closing the front opening of the refrigerator compartment 12 from the front side of the refrigerator 10, the operation unit 31 is located on the left side of the central portion in the left - right direction and below the central portion in the up - down direction. Also, the operation unit 31 is arranged slightly inside from the left - hand side surface of the refrigerator door 12D. The operation unit 31 is provided with a so - called capacitive electrostatic touch sensor 32. The electrostatic touch sensor 32 is an example of a detection unit, and can detect the proximity or contact of a human body, more specifically, the fingers of the user, based on the change in capacitance. That is, the electrostatic touch sensor 32 functions as a so - called touch switch.
[0015] In a general refrigerator, it is the mainstream that the operation unit operated by the user is provided on the rotatable free end side of the storage compartment door. Therefore, also in the refrigerator 10 according to the present disclosure, the electrostatic touch sensor 32 is arranged at a position biased toward the left - hand end side which is opposite to the right - hand end side rotatably supported by the rotation shafts 21a, 22a, that is, the rotatable free end of the refrigerator door 12D. Also, many general refrigerators have a configuration where the dimension in the up - down direction is longer than the dimension in the left - right direction, that is, a so - called vertically long refrigerator is the mainstream. Therefore, by making the electrostatic touch sensor 32 also have a configuration where the dimension in the up - down direction is longer than the dimension in the left - right direction, it is possible to realize a highly - designed configuration that harmonizes with the shape of the entire refrigerator 10.
[0016] As illustrated in FIG. 2, the refrigerator 10 includes a rectangular plate - shaped substrate 33. The electrostatic touch sensor 32 is provided on this substrate 33. Since the electrostatic touch sensor 32 detects the proximity and contact of a human body, it is desirable to secure the area as large as possible. Therefore, it is desirable to make the area occupied by the electrostatic touch sensor 32 on the substrate 33 as large as possible.
[0017] The refrigerator 10 also includes a wiring 34 connected to the substrate 33 inside the refrigerator door 12D. The wiring 34 extends from inside the heat-insulating box body 11 and is introduced into the refrigerator door 12D. The wiring 34 is arranged inside the refrigerator door 12D generally along the diagonal line of the refrigerator door 12D, but has an arrangement form with ingenuity in each place. Next, the arrangement form of the wiring 34 will be described in detail.
[0018] That is, the refrigerator 10 includes a hinge hole 35 through which the wiring 34 can be introduced into the refrigerator door 12D. The hinge hole 35 is provided in the right-side portion of the upper part of the outer frame forming the outer contour of the refrigerator door 12D, and rotatably houses the rotation shaft 21a of the hinge portion 21. Inside the refrigerator door 12D, the wiring 34 is introduced through this hinge hole 35. The hinge hole 35 is an example of an introduction hole. The opening diameter of the hinge hole 35 is at least large enough to accommodate the rotation shaft 21a and the wiring 34.
[0019] The refrigerator 10 also includes a hinge hole 36. The hinge hole 36 is provided in the right-side portion of the lower part of the outer frame forming the outer contour of the refrigerator door 12D, and rotatably houses the rotation shaft 22a of the hinge portion 22. The opening diameter of the hinge hole 36 is at least large enough to accommodate the rotation shaft 22a.
[0020] The electrostatic touch sensor 32 is arranged on the other side of the refrigerator door 12D, which is the side opposite to the side where the hinge hole 35 is provided. In this case, it is arranged on the left side when the refrigerator door 12D in the closed state closing the front opening of the refrigerator 12 is viewed from the front side of the refrigerator 10. The substrate 33 has a connector 37 between the electrostatic touch sensor 32 and the left-side surface, which is the other side of the refrigerator door 12D. The connector 37 is an example of a connection portion to which the wiring 34 is connected. The wiring 34 is introduced into the refrigerator door 12D from the hinge hole 35 and extends downward. Then, the wiring 34 bypasses the electrostatic touch sensor 32 inside the refrigerator door 12D and is connected to the connector 37.
[0021] More specifically, the wiring 34 has an introduction portion 34a that is introduced from the hinge hole 35 and extends into the refrigerator door 12D, and an extension direction change portion 34b whose extension direction changes toward the left side, which is the other side of the refrigerator door 12D, from this introduction portion 34a. The introduction portion 34a is an example of the first portion, and the extension direction change portion 34b is an example of the second portion. The wiring 34 extends linearly downward in the introduction portion 34a and then bends toward the left side, which is the other side of the refrigerator door 12D, in the extension direction change portion 34b. Therefore, the extension direction change portion 34b can also be defined as the "bending portion" of the wiring 34.
[0022] Note that the introduction portion 34a does not necessarily have to be a long extending portion, and it may be a part including the portion introduced from the hinge hole 35 or the portion immediately below the introduced portion. Also, the extension direction change portion 34b does not necessarily have to be a long extending portion, and it may be a part including the portion bent from the introduction portion 34a or the portion immediately after the bend. Also, inside the refrigerator door 12D, the wiring 34 is fixed at various locations by a tape (not shown) or the like.
[0023] The electrostatic touch sensor 32 is disposed between the extension direction change portion 34b of the wiring 34 and the connector 37 of the substrate 33. The wiring 34 is disposed so as to be separated downward from the virtual straight line L connecting the extension direction change portion 34b and the connector 37. The virtual straight line L can be defined as a straight line indicating the shortest distance between the extension direction change portion 34b and the connector 37. In this case, the distance between the wiring 34 and the virtual straight line L has an arrangement relationship that expands as it approaches the electrostatic touch sensor 32.
[0024] Also, the wiring 34 has a detour portion 34c that detours around the electrostatic touch sensor 32. In this case, the detour portion 34c is disposed below the electrostatic touch sensor 32. Also, the detour portion 34c is disposed at a predetermined distance from the lower end of the electrostatic touch sensor 32. This predetermined distance should ensure at least several millimeters to several centimeters.
[0025] Further, by arranging the detour portion 34c of the wiring 34 below rather than above the electrostatic touch sensor 32, it is possible to suppress the excessive bending of the extending direction changing portion 34b. In this case, the bending angle K at the extending direction changing portion 34b is suppressed to, for example, 45 degrees or less. Note that the bending angle K at the extending direction changing portion 34b is more preferably suppressed to, for example, 40 degrees or less.
[0026] The refrigerator door 12D includes a heat insulating material accommodating region R1 in which the vacuum heat insulating panel 38 is accommodated, a substrate accommodating region R2 in which the substrate 33 is accommodated, and a partition wall 39 that partitions the heat insulating material accommodating region R1 and the substrate accommodating region R2. The vacuum heat insulating panel 38 is an example of a heat insulating material. The portion other than the vacuum heat insulating panel 38 in the heat insulating material accommodating region R1 is filled with a heat insulating material such as foamed urethane (not shown).
[0027] The substrate accommodating region R2 is provided so as to be recessed toward the right side of the refrigerator door 12D in a portion below the central portion in the vertical direction of the left end face of the refrigerator door 12D. A lid member 40 is provided at the left end of the substrate 33. As the substrate 33 is accommodated in the substrate accommodating region R2, the opening of the substrate accommodating region R2 is closed by the lid member 40.
[0028] An insertion hole 39a through which the wiring 34 can be inserted is formed in the partition wall 39. The connector 37 is disposed below the lower side of the substrate 33, that is, below the central portion in the vertical direction. The insertion hole 39a is disposed in a portion of the partition wall 39 that partitions the lower side of the substrate accommodating region R2. The wiring 34 drawn out from the insertion hole 39a into the substrate accommodating region R2 is connected upward to the connector 37.
[0029] As illustrated in FIG. 3, in the manufacturing process of the refrigerator 10, the wiring 34 is connected to the connector 37 of the substrate 33 outside the substrate accommodation region R2. Then, the substrate 33 is accommodated in the substrate accommodation region R2 with the wiring 34 connected to the connector 37. At this time, the wiring 34 drawn out from the insertion hole 39a toward the substrate accommodation region R2 side is bent so as to be pushed into the substrate accommodation region R2.
[0030] However, the wiring 34 between the insertion hole 39a and the connector 37 is drawn out from the lower side of the substrate accommodation region R2. Therefore, the wiring 34 between the insertion hole 39a and the connector 37 is bent downward under the action of gravity. Therefore, as illustrated in FIG. 2, the wiring 34 between the insertion hole 39a and the connector 37 is positioned in a region below the electrostatic touch sensor 32, and it is possible to prevent the wiring 34 from overlapping the electrostatic touch sensor 32 or approaching the electrostatic touch sensor 32 too closely.
[0031] In the examples of FIGS. 2 and 3, the insertion hole 39a is formed in a portion of the partition wall 39 that partitions the lower side of the substrate accommodation region R2. However, the insertion hole 39a can be provided at an appropriate different position. For example, the insertion hole 39a may be formed in the lower side of a portion of the partition wall 39 that partitions the side portion of the substrate accommodation region R2.
[0032] According to the refrigerator 10 according to the present disclosure, the electrostatic touch sensor 32 is disposed on the other side of the refrigerator door 12D, which is opposite to the side where the hinge hole 35 is provided. The substrate 33 has a connector 37 to which the wiring 34 is connected between the electrostatic touch sensor 32 and the side surface of the other side of the refrigerator door 12D. The wiring 34 extends from the hinge hole 35 in the refrigerator door 12D, bypasses the electrostatic touch sensor 32, and is connected to the connector 37. According to this configuration example, it is possible to avoid the wiring 34 being disposed close to or in contact with the electrostatic touch sensor 32 in the refrigerator door 12D, and it is possible to suppress malfunction of the electrostatic touch sensor 32 due to noise generated from the wiring 34 disposed in the refrigerator door 12D.
[0033] Incidentally, as exemplified as Comparative Example 1 in FIG. 4, for example, by providing the connector 37 on the hinge hole 35 side rather than the electrostatic touch sensor 32, even if the wiring 34 is not arranged so as to bypass the electrostatic touch sensor 32, it is possible to avoid the wiring 34 from approaching or contacting the electrostatic touch sensor 32. However, in the configuration in which the connector 37 is provided on the hinge hole 35 side rather than the electrostatic touch sensor 32, the substrate 33 has to be further enlarged inside the refrigerator door 12D, and accordingly, the volume of the heat insulating material accommodation region R1 is reduced. That is, the volume of the region R1 where the heat insulating material can be arranged is reduced, and the heat insulating performance of the refrigerator door 12D is deteriorated.
[0034] Therefore, as in the refrigerator 10 according to the present disclosure, it is preferable that the connector 37 is provided on the side opposite to the hinge hole 35 side rather than the electrostatic touch sensor 32. However, if the wiring 34 introduced from the hinge hole 35 is arranged along the shortest distance to the connector 37, that is, along the virtual straight line L for example, the wiring 34 will approach or contact the electrostatic touch sensor 32. Therefore, the refrigerator 10 according to the present disclosure has a configuration example in which an inventive idea of arranging the wiring 34 so as to bypass the electrostatic touch sensor 32 is applied.
[0035] Further, according to the refrigerator 10, the wiring 34 has an introduction portion 34a extending from the hinge hole 35 into the refrigerator door 12D, and an extension direction change portion 34b whose extension direction changes from the introduction portion 34a to the other side of the refrigerator door 12D. And the electrostatic touch sensor 32 is arranged between the extension direction change portion 34b and the connector 37. And the wiring 34 is arranged away from the virtual straight line L connecting the extension direction change portion 34b and the connector 37. Also, the wiring 34 has a bypass portion 34c that bypasses the electrostatic touch sensor 32.
[0036] According to this configuration example, the wiring 34 extends from the side opposite to the connector 37 of the electrostatic touch sensor 32 and is to be connected to the connector 37. However, since the bypass portion 34c that bypasses the electrostatic touch sensor 32 is formed in the wiring 34, it is possible to more surely avoid the situation where the wiring 34 is disposed close to or in contact with the electrostatic touch sensor 32, and it is possible to more surely suppress the malfunction of the electrostatic touch sensor 32 due to the noise generated from the wiring 34.
[0037] Also, according to the refrigerator 10, the refrigerator door 12D is configured to be rotatable by being pivotally supported by the rotation shafts 21a and 22a on the right side which is one side of the refrigerator door 12D. The rotation shafts 21a and 22a are provided on the heat insulation housing 11, and the hinge holes 35 and 36 are configured to accommodate the rotation shafts 21a and 22a in the refrigerator door 12D. The bypass portion 34c of the wiring 34 is disposed below the electrostatic touch sensor 32.
[0038] According to this configuration example, the bending angle K in the extending direction changing portion 34b of the wiring 34 can be suppressed, the situation where the wiring 34 is excessively bent can be avoided, and the load applied to the wiring 34 can be reduced.
[0039] Also, according to the refrigerator 10, the refrigerator door 12D includes a heat insulation material accommodating region R1 in which the vacuum heat insulation panel 38 is accommodated, a substrate accommodating region R2 in which the substrate 33 is accommodated, and a partition wall 39 that partitions the heat insulation material accommodating region R1 and the substrate accommodating region R2. The partition wall 39 is an example of a partitioning portion. The partition wall 39 is provided with an insertion hole 39a through which the wiring 34 can be inserted. The connector 37 is disposed on the lower side of the substrate 33. The insertion hole 39a is disposed in a portion of the partition wall 39 that partitions the lower side of the substrate accommodating region R2.
[0040] According to this configuration example, when the substrate 33 is accommodated in the substrate accommodation region R2 during the manufacturing process of the refrigerator 10, the action of gravity can be utilized to easily accommodate the wiring 34 in a region below the electrostatic touch sensor 32. Thereby, it is possible to suppress the wiring 34 from overlapping or approaching the electrostatic touch sensor 32 too closely within the substrate accommodation region R2, and it is possible to more reliably suppress the electrostatic touch sensor 32 from malfunctioning due to noise generated from the wiring 34.
[0041] Also, according to the refrigerator 10, the wiring 34 is connected to the connector 37 in an upward direction. Here, as illustrated as Comparative Example 2 in FIG. 5, if a configuration in which the wiring 34 is connected to the connector 37 in a downward direction is considered, there is a possibility that the wiring 34 may hang down below the connector 37 from above the connector 37. And when the wiring 34 hangs down in this way, there is a possibility that unnecessary stress and load due to gravity may be applied to the wiring 34. Further, as illustrated as Comparative Example 3 in FIG. 5, if a configuration in which the wiring 34 is connected to the connector 37 in a lateral direction is considered, there is a possibility that the wiring 34 may hang down below the connector 37 on the side of the connector 37. And when the wiring 34 hangs down in this way, there is a possibility that unnecessary stress and load due to gravity may be applied to the wiring 34.
[0042] On the other hand, according to the configuration in which the wiring 34 is connected to the connector 37 in an upward direction like the refrigerator 10 of the present disclosure, even if gravity acts on the wiring 34, the action is applied along the direction in which the wiring 34 extends. Therefore, it is possible to suppress unnecessary stress and load from being applied to the wiring 34. And by suppressing unnecessary stress and load from being applied to the wiring 34, it is possible to suppress the wiring 34 from coming off the connector 37.
[0043] Note that the present disclosure is not limited to the above-described embodiment, and various modifications and extensions can be made as appropriate without departing from the gist thereof. For example, the wiring 34 includes various wirings such as a signal line for transmitting and receiving an operation command signal and the like by a control device (not shown) that controls the overall operation of the refrigerator 10, and a power supply line for supplying power from the refrigerator main body side to the storage chamber door side.
[0044] The arrangement mode of the wiring 34 in the refrigerator compartment door 12D is not limited to the above-described arrangement mode, and various arrangement modes can be applied as long as at least the electrostatic touch sensor 32 is avoided. Further, as long as the wiring 34 bypasses at least the electrostatic touch sensor 32, it may contact or be close to components other than the electrostatic touch sensor 32.
[0045] For example, as illustrated in FIG. 6, the refrigerator 10 may be configured to include a metal noise shielding member 41 between the electrostatic touch sensor 32 and the wiring 34. The noise shielding member 41 is an example of a suppression unit. The noise shielding member 41 is a foil-shaped member formed of a metal material such as aluminum, for example, and suppresses the propagation of noise such as electromagnetic waves generated from the wiring 34 to the electrostatic touch sensor 32.
[0046] In the configuration example illustrated in FIG. 6, the noise shielding member 41 covers the entire substrate 33 including the electrostatic touch sensor 32. By covering the entire substrate 33 including the electrostatic touch sensor 32 with the noise shielding member 41 in this way, it is also possible to suppress the propagation of noise generated from components other than the wiring 34 to the electrostatic touch sensor 32. However, the noise shielding member 41 may have a size that covers only a part of the substrate 33, particularly the part where the electrostatic touch sensor 32 is disposed. Further, the noise shielding member 41 may have a size that covers at least only the portion between the electrostatic touch sensor 32 and the wiring 34. Further, the refrigerator 10 may be configured to cover the wiring 34 itself with a noise shielding member instead of or in addition to the noise shielding member 41. That is, the refrigerator 10 may be configured such that a foil-like member formed of a metal material such as aluminum, for example, is wound around the wiring 34.
[0047] Further, as illustrated in FIG. 7, the refrigerator 10 may be configured such that the rotation shaft 51 is provided on the refrigerator door 12D of the refrigerating chamber instead of the heat insulating box body 11, and this rotation shaft 51 is rotatably supported by a hinge hole (not shown) provided on the heat insulating box body 11 side. And in this case, the introduction hole 52 for introducing the wiring 34 into the refrigerator door 12D of the refrigerating chamber may be provided in the rotation shaft 51. In this case, the introduction hole 52 is formed on the circumferential side surface of the rotation shaft 51.
[0048] The storage chamber is not limited to the refrigerating chamber 12, and may be other storage chambers. Further, the storage chamber door is not limited to the refrigerator door 12D of the refrigerating chamber, and may be other storage chamber doors. Further, the refrigerator door 12D of the refrigerating chamber may be configured to be rotatable such that the other end in the left-right direction of the refrigerator door 12D of the refrigerating chamber, in this case, the left end of the refrigerator door 12D in the closed state closing the front opening of the refrigerating chamber 12, is pivotally supported by a rotation shaft when viewed from the front side of the refrigerator 10. Further, the refrigerator 10 is not limited to the configuration in which the front opening of the refrigerating chamber 12 is closed by one refrigerator door 12D of the refrigerating chamber, and may be, for example, a configuration in which the front opening of the refrigerating chamber is closed by a left refrigerator door and a right refrigerator door of the refrigerating chamber, that is, a so-called French door type configuration.
[0049] The above describes one embodiment of the present invention. However, this embodiment is presented only as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, changes, etc. can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.
Description of Reference Numerals
[0050] In the drawings, 10 is a refrigerator, 12 is a refrigerating chamber (storage chamber), 12D is (storage chamber door), 21a, 22a, 51 are rotation axes, 32 is an electrostatic touch sensor (detection unit), 33 is a substrate, 34 is a wiring, 34a is an introduction part (first part), 34b is a part where the extending direction changes (second part), 34c is a detour part, 35 is a hinge hole (introduction hole), 37 is a connector (connection part), 39 is a partition wall (partition part), 39a is an insertion hole, 41 is a noise shielding member (suppression part), R1 is a heat insulating material accommodation region, and R2 is a substrate accommodation region.
Claims
1. A storage room for storing items, a storage room door capable of closing the opening of the storage room, a detection unit capable of detecting the proximity or contact of a human body based on a change in capacitance, a substrate provided with the detection unit, a wiring connected to the substrate inside the storage room door, an introduction hole through which the wiring can be introduced into the storage room door, and comprising: the detection unit is disposed on the other side of the storage room door opposite to the side where the introduction hole is provided, the substrate has a connection portion to which the wiring is connected between the detection unit and the side surface of the other side of the storage room door, the wiring extends from the introduction hole inside the storage room door, bypasses the detection unit, and is connected to the connection portion in a refrigerator.
2. The wiring is: a first portion extending from the introduction hole into the storage room door, a second portion whose extending direction changes from the first portion to the other side of the storage room door, and has: the detection unit is disposed between the second portion and the connection portion, the wiring is disposed away from a virtual straight line connecting the second portion and the connection portion and has a bypass portion that bypasses the detection unit, according to the refrigerator described in claim 1.
3. One side of the storage room door is one side in the left - right direction of the storage room door, the other side of the storage room door is the other side in the left - right direction of the storage room door, the storage room door is configured to be rotatable such that one side of the storage room door is pivotally supported by a rotation axis, the rotation axis is provided on the storage room door and the introduction hole is provided on the rotation axis, or the rotation axis is provided on the refrigerator body forming the storage room and the introduction hole is configured to accommodate the rotation axis in the storage room door, the bypass portion is disposed below the detection unit, according to the refrigerator described in claim 2.
4. The storage room door is: a heat - insulating material accommodation region for accommodating a heat - insulating material, a substrate accommodation region for accommodating the substrate, a partition portion partitioning the heat - insulating material accommodation region and the substrate accommodation region, an insertion hole provided in the partition portion through which the wiring can be inserted, and comprising: the connection portion is disposed on the lower side of the substrate, the insertion hole is disposed in a portion of the partition portion that partitions the lower side of the substrate accommodation region, according to the refrigerator described in claim 3.
5. The wiring is connected upward with respect to the connection portion, according to the refrigerator described in claim 4.
6. The refrigerator according to claim 3, further comprising a suppression unit that suppresses the propagation of electromagnetic waves generated from the wiring to the detection unit, between the detection unit and the wiring.
Citation Information
Patent Citations
Wiring structure for refrigerator door
JP2001272162A