JP2021145019A - Electrical apparatus and refrigerator - Google Patents

Abstract

To provide an electrical apparatus that suppresses cracks and breakage between a circuit board on which an electronic component is mounted and an electrical component, and a refrigerator equipped with the electrical apparatus.SOLUTION: An electrical apparatus is provided in a refrigerator, and includes an electrical component and a circuit board on which an electrical component is mounted. The circuit board is manufactured by dividing multiple circuit board, and includes a notch formed by cutting out the edge of the circuit board, and a dividing portion that is provided at a portion other than the portion where the notch is formed at the edge portion and is a boundary portion between the circuit board and another circuit board.SELECTED DRAWING: Figure 3

Description

Embodiments of the present invention relate to electrical appliances and refrigerators.

In recent years, with the spread of mobile information terminals such as smartphones and tablets, for example, an electric device having a connection terminal capable of connecting to an external device such as a mobile information terminal is provided in the refrigerator, and the refrigerator and the external device are electrically connected. A configuration has been proposed in which power can be supplied from the refrigerator to an external device.

On the other hand, in order to secure the internal capacity of the refrigerator, it is required to reduce the volume of the electric device. For that purpose, it is necessary to increase the density and miniaturize the mounting of electronic components on the circuit board of the electric device. In such a small electric device, in order to improve productivity, a plurality of circuit boards constituting the electric device are arranged on one large board, electronic components are mounted on each circuit board, and then each electric device is separated. It may be manufactured by a so-called imposition or panelization method. In this case, so-called perforations, V-cuts, or the like are used to separate each electric device. However, when conventional perforations or V-cuts are used, stress is applied between the circuit board and the electronic components when each electric device is divided and separated from one large board, and damage or cracks are likely to occur. There was a challenge.

Japanese Unexamined Patent Publication No. 2016-188760

Therefore, an electric device that suppresses cracks and breakage between the circuit board on which the electronic component is mounted and the electric component and a refrigerator provided with the electric device are provided.

The electric device of the embodiment is provided in a refrigerator and includes an electric component and a circuit board on which the electric component is mounted. The circuit board is manufactured by dividing a plurality of circuit boards, and a notch formed by cutting out an edge portion of the circuit board and the notch portion of the edge portion are formed. It has a divided portion which is provided in a portion other than the above-mentioned portion and is a boundary portion between the circuit board and another circuit board.

The refrigerator of the embodiment includes an electric device including an electric component and a circuit board on which the electric component is mounted. The circuit board is manufactured by dividing a plurality of circuit boards, and a notch formed by cutting out an edge portion of the circuit board and the notch portion of the edge portion are formed. It has a divided portion which is provided in a portion other than the above-mentioned portion and is a boundary portion between the circuit board and another circuit board.

Front view showing the appearance of an example of a refrigerator according to an embodiment An exploded perspective view showing the lower part of the right door of the refrigerator compartment for an example of a refrigerator according to one embodiment. Schematic diagram showing the configuration of a connection unit for an example of a refrigerator according to an embodiment An example of a refrigerator according to one embodiment An exploded perspective view showing the connection unit, the holding portion, and the lid member removed from the right door of the refrigerator compartment as viewed from below. An example of a refrigerator according to one embodiment An exploded perspective view showing the connection unit, the holding portion, and the lid member removed from the right door of the refrigerator compartment as viewed from above. A cross-sectional view showing the periphery of the accommodating portion and the recessed portion along the x6-x6 line of FIG. 1 for an example of a refrigerator according to one embodiment. A simplified cross-sectional view of the connection unit as viewed from the front for an example of a refrigerator according to an embodiment. A cross-sectional view showing an example of a refrigerator according to an embodiment along the x8-x8 line of FIG. A cross-sectional view showing an example of a refrigerator according to an embodiment along the x9-x9 line of FIG. A cross-sectional view showing an example of a refrigerator according to an embodiment along the x10-x10 line of FIG. Schematic diagram showing a manufacturing process of a connection unit for an example of a refrigerator according to an embodiment (No. 1) Schematic diagram showing a manufacturing process of a connection unit for an example of a refrigerator according to an embodiment (Part 2) Schematic diagram showing a manufacturing process of a connection unit for an example of a refrigerator according to an embodiment (Part 3) About an Example of a Refrigerator According to One Embodiment A schematic view of the periphery of a groove of a circuit board viewed from a direction perpendicular to the thickness direction. An example of a refrigerator according to an embodiment is a schematic view of the periphery of a divided portion of a circuit board viewed from a direction perpendicular to the thickness direction.

Hereinafter, the refrigerator according to one embodiment will be described with reference to the drawings.
First, a schematic configuration of the refrigerator 1 will be described with reference to FIG. As shown in FIG. 1, the refrigerator 1 is configured to have a plurality of storage chambers in a vertically long rectangular box-shaped refrigerator main body 10 having an open front surface. In the following description, the opening side of the refrigerator body 10 is the front side of the refrigerator 1, and the side opposite to the opening is the rear side of the refrigerator 1. Further, the vertical direction with respect to the gravitational direction when the refrigerator 1 is installed on the floor in the posture shown in FIG. 1 is defined as the vertical direction of the refrigerator 1. Further, the left-right direction when the refrigerator 1 of FIG. 1 is viewed from the front side is defined as the left-right direction of the refrigerator 1.

As shown in FIG. 1, the refrigerator 1 is mainly composed of the refrigerator main body 10. The refrigerator body 10 is composed of a rectangular box body having a heat insulating property with an open front surface. In this case, although details are not shown, the refrigerator main body 10 is configured by providing, for example, a heat insulating material between an inner box made of resin and an outer box made of metal.

The refrigerator body 10 includes, for example, a refrigerating room 11, a vegetable room 12, an ice making room 13, a small freezing room 14, and a freezing room 15 as a plurality of storage rooms for storing stored items. The refrigerating room 11 and the vegetable room 12 are storage rooms in the refrigerating temperature zone. The ice making chamber 13, the small freezing chamber 14, and the freezing chamber 15 are storage chambers in the freezing temperature zone.

The refrigerating chamber 11 is provided at the uppermost part of the refrigerator main body 10. The vegetable compartment 12 is provided below the refrigerator compartment 11. The ice making chamber 13 and the small freezing chamber 14 are located below the vegetable compartment 12 and are provided side by side. The freezing chamber 15 is provided below the ice making chamber 13 and the small freezing chamber 14, that is, at the bottom of the refrigerator body 10.

The refrigerator 1 includes a right refrigerating room door 21, a left refrigerating room door 22, a vegetable room door 23, an ice making room door 24, a small freezing room door 25, and a freezing room door 26. The right refrigerating room door 21 and the left refrigerating room door 22 are, for example, hinge-opening / closing doors with double doors, and open / close the front opening of the refrigerating room 11. The width of the right refrigerating room door 21 and the width of the left refrigerating room door 22 may be the same or different. In the case of the present embodiment, the right side refrigerating room door 21 is configured to be wider than the left side refrigerating room door 22.

Further, the right side refrigerating room door 21 has a right side hinge 211, and the left side refrigerating room door 22 has a left side hinge 221. The hinges 211 and 221 are provided on the upper and lower portions of the outer end portions of the refrigerating chamber doors 21 and 22, respectively, and rotatably support the refrigerating chamber doors 21 and 22. The vegetable room door 23, the ice making room door 24, the small freezing room door 25, and the freezing room door 26 are all pull-out type, and the vegetable room 12, the ice making room 13, the small freezing room 14, and the freezing room 15 are respectively. Open and close the front opening.

The refrigerator 1 includes a power supply device (not shown). In the case of the present embodiment, the power supply device is provided so as to be embedded in a portion deep inside the ceiling of the refrigerator main body 10.

Refrigerator 1 includes an operating device 222. The operation device 222 has a function of accepting an operation from a user and changing and displaying various settings such as the operation content of the refrigerator 1. In the case of the present embodiment, the operation device 222 is composed of, for example, an electrostatic touch type operation device. The operating device 222 is built in, for example, one or both of the refrigerator doors 21 and 22. In the case of this embodiment, the operation device 222 is installed on the left side refrigerating room door 22. In this case, the user can perform an input operation on the operation device 222 by touching the area of the surface of the left side refrigerating room door 22 where the operation device 222 is provided. The operating device 222 is not limited to the electrostatic touch type, but may be a button type.

Further, the refrigerator 1 includes a connection unit 30 as an electric device. The connection unit 30 is connected to a power supply device (not shown) via the electrical wiring 70 shown in FIGS. 1 and 6. As shown in FIGS. 1 and 6, the connection unit 30 connects an external device 80 such as a smartphone or tablet directly or via a cable 81 so as to be detachable and power supplyable. Then, a power supply device (not shown) supplies power to the external device 80 connected via the connection unit 30.

As shown in FIGS. 3 to 5, the connection unit 30 includes a circuit board 31, a power supply side socket 32, and a connection portion 33. As shown in FIG. 3, the circuit board 31 is a printed circuit board formed in a substantially rectangular plate shape, and is a so-called rigid board having low flexibility. The direction A in FIGS. 3 and 7 refers to the direction on the back side with respect to the insertion direction of the external device 80. The B direction in FIGS. 3 and 7 refers to the direction on the front side with respect to the insertion direction of the external device 80. The circuit board 31 is, for example, a glass epoxy board in which epoxy resin is impregnated into glass fibers. The circuit board 31 mounts a power supply side socket 32, a connection portion 33, and an integrated circuit 34 as electrical components.

The power supply side socket 32 is a female connector, and as shown in FIG. 6, receives the power supply side connector 71, which is a male connector provided at the tip of the output side of the electric wiring 70, and receives the power from the power supply device 31. Supply to. The connection portion 33 is a female connector, and receives a connector 82 which is a male connector provided at the tip of a cable 81 provided in the external device 80 or connected to the external device 80, and is detachably connected so as to be able to supply power. do. The integrated circuit 34 has a function of controlling a voltage value output from the connection unit 33. For example, the integrated circuit 34 functions as a safety device such that the integrated circuit 34 does not output from the connection unit 33 when a load exceeding a certain level is applied.

The power supply side socket 32, the connection portion 33, and the integrated circuit 34 are fixed to the circuit board 31 by a method such as soldering. In this specification, inserting or removing the connector 82 provided in the external device 80 or the connector 82 provided in the cable 81 connected to the external device 80 into or out of the connecting portion 33 means that the external device 80 is connected to the connecting portion. It may be inserted or removed from 33.

In the case of the present embodiment, the connection unit 33 is, for example, a connector based on the USB (Universal Serial Bus) standard, and is composed of, for example, a USB female connector. The connection unit 33 is not limited to the USB connector as long as it is based on a standard capable of connecting to the external device 80 so as to be able to supply power.

The connection unit 30 is provided on each door 21, 22, 23, 25, 26, or the refrigerator main body 10. In the case of this embodiment, the connection unit 30 is provided on the right side refrigerating room door 21. The connection unit 30 is provided near the lower end of the right refrigerating room door 21. In this case, the right refrigerating room door 21 has a recessed portion 212 and an accommodating portion 40 as shown in FIGS. 1 and 2. The accommodating unit 40 accommodates the connection unit 30 inside.

The recessed portion 212 is provided at the peripheral edge portion of the right refrigerating chamber door 21, in this case, the lower end portion. The recessed portion 212 is formed by recessing the surface portion of the right refrigerating chamber door 21 with respect to the thickness direction of the door 21. That is, the recessed portion 212 is opened toward the user side at the right refrigerating room door 21. The recessed portion 212 allows the external device 80 or the connector 82 to be connected to the connecting unit 30 in such a manner that at least a part of the external device 80 or the connector 82 does not protrude forward from the door 21.

As shown in FIG. 6, the accommodating portion 40 is a space formed inside the right refrigerating chamber door 21, and is provided adjacent to the periphery of the recessed portion 212. As shown in FIG. 2 and the like, the accommodating portion 40 has an opening 41, a top surface portion 42, and a side surface portion 43. The opening 41 is provided in the lower part of the accommodating portion 40 and opens the accommodating portion 40 downward. The top surface portion 42 is provided on the upper portion of the accommodating portion 40, that is, a portion facing the opening 41, and constitutes a ceiling portion of the internal space of the accommodating portion 40. The side surface portion 43 connects the opening 41 and the top surface portion 42, and constitutes a wall portion surrounding the internal space of the accommodating portion 40.

In the case of the present embodiment, the accommodating portion 40 is opened downward with respect to the right refrigerating chamber door 21 by the opening 41. Therefore, when the connection unit 30 is attached to the right refrigerating chamber door 21, the connecting unit 30 is passed through the opening 41 from below to above the right refrigerating chamber door 21 and inserted into the accommodating portion 40. That is, the insertion direction of the connection unit 30 into the accommodating portion 40 is different from the insertion / removal direction of the external device 80. In the present embodiment, the insertion direction of the connection unit 30 into the accommodating portion 40 and the insertion / removal direction of the external device 80 are perpendicular to each other. In this case, the connection unit 30 is provided to be detachable, that is, replaceable with respect to the right refrigerating chamber door 21.

FIG. 6 is a cross-sectional view of the periphery of the accommodating portion and the recessed portion shown along x6-x6 of FIG. 1 when viewed from above. As shown by the alternate long and short dash line in FIG. 6, the top surface portion 42 is provided with a drawer port 44 for drawing out the electric wiring 70. In the case of the present embodiment, the drawer port 44 is provided in a portion of the top surface portion 42 where the connection unit 30 is not housed downward. In the present embodiment, the drawer port 44 is provided from the side opposite to the connection unit 30 from the center in the left-right direction of the top surface portion 42, and in this case from the left side. The electrical wiring 70 connected to the power supply device (not shown) is, for example, drawn into the right refrigerating room door 21 from the hinge 211 provided on the upper part of the right refrigerating room door 21 to reach the drawer port 44, and the storage portion is reached from the drawer port 44. Pulled out to 40.

The electric wiring 70 pulled out to the accommodating portion 40 is accommodated in the electric wiring accommodating portion 45 which is a part of the accommodating portion 40 in a slightly loosened state. In the present embodiment, the electrical wiring accommodating portion 45 constitutes a portion of the accommodating portion 40 from the left side of the center in the left-right direction. The electrical wiring 70 is connected to the connection unit 30 by loosening it with a margin of, for example, about 5 cm to 10 cm. Therefore, for example, when the operator installs or removes the connection unit 30 in the accommodating portion 40 at the time of manufacturing or repair, the movement of the electric wiring 70 is restricted and the work becomes difficult.

As shown in FIGS. 2 and 6, the side surface portion 43 is on the side of the recessed portion 212, in other words, on the side opposite to the electrical wiring accommodating portion 45, that is, on the right side in the case of the present embodiment, the inner wall 431 and the window portion 432. And have. The inner wall 431 forms a wall portion that partitions the inside of the accommodating portion 40 and the recessed portion 212. In the case of the present embodiment, the surface formed by the inner wall 431 is inclined with respect to the front-rear direction. The window portion 432 is formed by opening a part of the inner wall 431 and communicates the inside of the accommodating portion 40 with the recessed portion 212. The tip of the connector 82 of the external device 80 or the cable 81 is inserted into the connection unit 30 through the window portion 432. The connector 82 provided on the external device 80 or the cable 81 is inclined in the left-right direction while being inserted into the connection unit 30. That is, the insertion / removal direction of the external device 80 is inclined with respect to the left-right direction.

The door 21 includes a holding member 50 as shown in FIGS. 4 to 6. The holding member 50 has a function of holding the connection unit 30, and is housed inside the housing unit 40. The holding member 50 includes an upper portion 51 and a side portion 52. The upper portion 51 forms an upper surface portion of the holding member 50, and in a state of being accommodated inside the accommodating portion 40, abuts on the top surface portion 42 of the accommodating portion 40. The side portion 52 is connected to the upper portion 51 and forms a continuous or discontinuous side surface portion of the holding member 50. At least a part of the side portion 52 abuts on the side surface portion 43 of the accommodating portion 40 in a state of being accommodated inside the accommodating portion 40. In the case of the present embodiment, as shown in FIG. 6, the side portion 52 has a surface facing the front side and a surface facing the rear side, and these surfaces face the front side and the back of the side surface portion 43 of the accommodating portion 40. It abuts on the side-facing surface, respectively. Further, a surface of the side portion 52 facing the recessed portion 212, that is, a part of the surface on the right side of the side portion 52 in this case, abuts on the inner wall 431. Therefore, in the state of being accommodated in the accommodating portion 40, the holding member 50 is restricted from moving in a direction other than the vertical direction.

The side portion 52 has a cut end 53 on a surface of the side portion 52 facing the recessed portion 212, that is, a part of the right surface. In the present embodiment, the cut end 53 is formed by cutting out the side portion 52 in an inverted U shape that opens downward. The area of the cut end 53 is larger than the area of the window portion 432. The side portion 52 has a recess 54 around the cut end 53. The recess 54 is formed by recessing the side portion 52 in the thickness direction around the cut end 53. Therefore, in the present embodiment, the recess 54 is also configured in an inverted U shape.

The connection unit 30 is housed in the accommodating portion 40 in a state where the tip of the connecting portion 33 can be visually viewed and contacted from the side of the recessed portion 212 via the cut end 53 and the window portion 432. As a result, as shown in FIG. 6, the user can insert the connector 82 provided at one end of the cable 81 connected to the external device 80 from the recessed portion 212 side into the insertion port of the connecting portion 33, for example, to connect the connection unit. The external device 80 can be connected to the power supply device via 30. In the present embodiment, the tip of the connecting portion 33 on the front side with respect to the insertion direction of the external device 80 does not protrude from the accommodating portion 40. That is, the tip portion of the connecting portion 33 is located on the inner side of the inner wall 431 with respect to the insertion direction, in other words, on the inner side with respect to the accommodating portion 40. In another embodiment, the tip end portion of the connecting portion 33 may protrude toward the recessed portion 212 side. Here, the front side with respect to the insertion direction refers to the direction toward the recessed portion 212 with respect to the moving line of the connector 82 inserted from the recessed portion 212 into the accommodating portion 40. Further, the back side with respect to the insertion direction refers to the direction toward the accommodating portion 40 with respect to the moving line of the connector 82 inserted from the recessed portion 212 into the accommodating portion 40.

As shown in FIGS. 7 to 9, the holding member 50 further includes a claw portion 56 and a fitting portion 55. As shown in FIG. 8, the claw portion 56 is provided so as to project downward from the upper portion 51, and the tip is curved so as to be formed on the L-shaped side as a whole. The claw portion 56 is locked to the side portion forming the thickness direction of the circuit board 31 by the curved portion 561 at the tip. Therefore, the claw portion 56 restricts the movement of the circuit board 31 in the vertical direction.

The fitting portion 55 projects downward from the upper portion 51 to form an inverted U shape. Further, as shown in FIG. 7, the circuit board 31 has a fitted portion 311. The fitted portion 311 is formed by cutting out a piece in the longitudinal direction of the circuit board 31, in this case, a part of the upper side thereof, and fits with the fitting portion 55 to restrict the movement of the circuit board 31.

That is, when the connection unit 30 is attached to the holding member 50, the movement of the circuit board 31 in the vertical direction is restricted by locking the circuit board 31 and the claw portion 56, and the fitted portion 311 and the fitting portion 55 are fitted. The movement of the circuit board 31 with respect to the insertion / removal direction of the connector 82 is restricted by the fitting with the connector 82. In this case, when the holding member 50 and the connecting unit 30 are accommodated in the accommodating portion 40, the thickness direction of the circuit board 31 is parallel to the inner wall 431. That is, the longitudinal side and the familiar side of the circuit board 31 are perpendicular to the inner wall 431. Further, in the present embodiment, the longitudinal side of the circuit board 31 is parallel to the insertion / removal direction of the external device 80 and is inclined with respect to the left-right direction.

The upper portion 51, the fitting portion 55, and the claw portion 56 are formed by integrally molding a synthetic resin such as plastic. Therefore, the fitting portion 55 and the claw portion 56 basically bend in the insertion / removal direction of the external device 80 in the state where the holding member 50 is accommodated in the accommodation portion 40, except that the fitting portion 55 and the claw portion 56 are bent to allow the circuit board 31 to be mounted. It is also immovable in the front-back direction.

As shown in FIGS. 4 to 6, the refrigerator 1 further includes a lid member 60. The lid member 60 has a lid main body 61 and a sandwiching portion 62. The lid body 61 forms a plane parallel to the horizontal plane, and has a function of opening and closing the opening 41 of the accommodating portion 40 in a detachable manner. Further, the sandwiching portion 62 projects upward from the lid main body 61 and is formed in a U shape. The lid body 61 and the sandwiching portion 62 are integrally molded with a synthetic resin such as plastic.

When the opening 41 is closed by the lid member 60 in a state where the connection unit 30 held by the holding member 50 is housed in the housing portion 40, one side of the lower side of the circuit board 31 is formed in the U-shaped groove portion of the sandwiching portion 62. Is sandwiched. As a result, the movement of the circuit board 31 in the thickness direction is restricted.

As shown in FIG. 3, the circuit board 31 further has an edge 310. The edge 310 forms a rectangular peripheral edge of the circuit board 31. In the present embodiment, the edge portion 310 includes a split portion 312 and a notch portion 313. The dividing portion 312 and the notched portion 313 are provided on at least one side in the longitudinal direction, in this case, two sides in the longitudinal direction of the edge portion 310 of the circuit board 31.

The notch portion 313 is formed by notching the edge portion 310 toward the inside of the circuit board 31. The dividing portion 312 is provided in a portion other than the portion where the cutout portion 313 of the edge portion 310 is formed. That is, the width of the notched portion 313 of the circuit board 31 formed in the vertical direction on the paper surface of FIG. 3 is the vertical length dimension of the formed portion of the divided portion 312. It is smaller than the width. In other words, the notch portion 313 is formed inside the circuit board 31 with respect to the imaginary line L extending the division portion 312 shown in FIG. Two notch portions 313 are provided on one side of the edge portion 310 in the longitudinal direction in the case of a plurality of cutout portions 313. A division portion 312 is formed between the plurality of notch portions 313 and the notch portion 313. Further, the fitted portion 311 is provided in the notch portion 313.

As shown in FIG. 3, the connection portion 33, the integrated circuit 34, and the power supply side socket 32 are mounted side by side in order along the longitudinal direction of the circuit board 31. The connecting portion 33 is mounted on the edge portion 310 on the front side of the circuit board 31 with respect to the insertion direction of the external device 80, that is, on the recessed portion 212 side with respect to the accommodating portion 40. The connecting portion 33 is fixed in a state in which a part of the connecting portion 33 protrudes outside the circuit board 31 from the edge portion 310. In this case, the connecting portion 33 is fixed in a state in which a part of the connecting portion 33 protrudes outside the circuit board 31 in the longitudinal direction from the edge portion 310. The power supply side socket 32 is mounted on the edge portion 310 on the back side of the circuit board 31 with respect to the insertion direction of the external device 80, that is, on the accommodating portion 40 side with respect to the recessed portion 212. The end of the power socket 32 is approximately aligned with the edge 310. That is, the connection portion 33 and the power supply side socket 32 are arranged at both ends of the circuit board 31 in the longitudinal direction. The integrated circuit 34 is arranged between both ends of the circuit board 31 in the longitudinal direction, in this case near the central portion with respect to the longitudinal direction.

In this case, the connection portion 33 and the power supply side socket 32 are sandwiched between the division portions 312 when viewed along the short side of the circuit board 31. That is, the edge portion 310 has a split portion 312 in the vertical direction between the connecting portion 33 and the power supply side socket 32. Further, the integrated circuit 34 has its side portion sandwiched between the notch portions 313 when viewed along the lateral direction of the circuit board 31. That is, the edge portion 310 has a notch portion 313 in the vertical direction of the integrated circuit 34.

Next, a method of manufacturing the connection unit 30 will be described with reference to FIGS. 11 to 15. As shown in FIG. 11, a plurality of connection units 30 are arranged on one large rectangular sheet member 90, and in this case, circuit boards 31 constituting 15 connection units 30 are arranged, and electronic components are arranged on each circuit board 31. Is mounted to form the connection unit 30, and then each connection unit 30 is separated and manufactured. The number of circuit boards 31 cut out from one sheet member 90 varies depending on the size of the sheet member 90 and the design of the circuit board 31. First, the seat member 90 is formed with an ear portion 91, a slit 92, and a notch portion 313 by a machine tool such as a router processing machine.

As shown in FIG. 11, the selvage portion 91 is formed in a portion of the peripheral edge portion of the seat member 90 other than the portion in which the circuit board 31 is formed. The selvage portion 91 has a function of connecting a plurality of circuit boards 31 to each other at the time of manufacturing and a function as a portion for fixing the sheet member 90 to the manufacturing machine at the time of processing the circuit board 31. The slit 92 is formed by forming an edge portion 310 on the lateral side of one circuit board 31 and an edge portion 310 on the lateral side of another circuit board 31 adjacent to the one circuit board 31 in the longitudinal direction. It is formed by cutting a gap. The cutout portion 313 forms a portion between the selvage portion 91 and the circuit board 31, or between one circuit board 31 and the one circuit board 31 and another circuit board 31 adjacent to the circuit board 31 in the lateral direction. It is formed by cutting. At this time, the fitted portion 311 is also formed at the same time as the notch portion 313.

Next, as shown in FIGS. 12 and 14, the groove portion 93 is formed. The groove portion 93 is formed by cutting the sheet member 90 in the thickness direction in this case in a V shape. The groove portion 93 may be formed by cutting with a machine tool such as a cutting tool. In the present embodiment, the groove 93 is formed on both sides of the seat member 90. In this case, the thickness of the sheet member 90 may be 0.8 to 2.5 mm, for example 1.6 mm. The depth of the groove portion 93 may be 0.3 to 1.0 mm, for example, 0.6 mm. In the present embodiment, the selvage portion 91, the slit 92, and the notch portion 313 are formed before the groove portion 93 is formed, but after the groove portion 93 is formed, the selvage portion 91 and the slit 92 are formed. , The notch portion 313 and the like may be formed in this order.

Subsequently, as shown in FIG. 13, electronic components such as the connection portion 33, the integrated circuit 34, and the power supply side socket 32 are mounted on the individual circuit boards 31 on the seat member 90. Mounting on the circuit board 31 such as the connection portion 33, the integrated circuit 34, and the power supply side socket 32 may be performed manually by a robot, a machine, or an operator.

Then, the selvage portion 91 is first separated from the seat member 90, and then the individual circuit boards 31 are separated. The work of separating the selvage portion 91 and the individual circuit boards 31 is mainly performed manually by the operator. The operator can divide the selvage portion 91 and the individual circuit boards 31 by folding the groove portion 93 into a crease and bending the sheet member 90 to separate the seat member 90. Since the sheet member 90 is made of a material having low flexibility, which is a so-called rigid substrate, the individual circuit boards 31 and the like can be easily and quickly divided by bending the groove portion 93 without using a tool such as a cutter knife. can do. The portion where the groove portion 93 was formed when the individual circuit boards 31 were connected is divided to form a boundary portion between one circuit board 31 and another circuit board 31 as shown in FIG. It becomes part 312. In this way, a plurality of connection units 30 are manufactured at one time.

The volume of the power supply side socket 32 and the connection portion 33 is larger than that of the integrated circuit 34, and the contact area with the circuit board 31, that is, the soldered area is also large. On the other hand, the integrated circuit 34 is generally thin and has a smaller volume than the power supply side socket 32 and the connection portion 33. Therefore, the power supply side socket 32 and the connection portion 33 have higher rigidity than the integrated circuit 34. Further, the fixing between the power supply side socket 32 or the connection portion 33 and the circuit board 31 is stronger than the fixing between the integrated circuit 34 and the circuit board 31. That is, the fixing between the power supply side socket 32 and the connection portion 33 and the circuit board 31 is stronger against stress than the fixing between the integrated circuit 34 and the circuit board 31. In the present specification, the integrated circuit 34 may be referred to as a first electric component, and the power supply side socket 32 and the connection portion 33 may be referred to as a second electric component.

Here, bending stress is concentrated in the groove portion 93 and its surroundings at the time of division. That is, stress is likely to be applied to the divided portion 312 and its surroundings. As described above, the fixation between the integrated circuit 34 and the circuit board 31 is not strong against stress. Therefore, when the divided portion 312 is formed around the integrated circuit 34, the solder fixing the integrated circuit 34 and the circuit board 31 may be cracked due to the stress at the time of division, or the integrated circuit 34 may be formed. It may fall off from the circuit board 31. As a result, the non-defective rate may decrease.

According to the embodiment described above, the connection unit 30 as an electric device provided in the refrigerator includes a connection portion 33 as an electric component, a power supply side socket 32, an integrated circuit 34, and a circuit board 31. The circuit board 31 is manufactured by dividing a plurality of circuit boards 31, and has a notch 313 formed by cutting out the edge 310 of the circuit board 31 and a notch 313 of the edge 310. It has a divided portion 312 which is provided in a portion other than the portion where the circuit board is formed and is a boundary portion between the circuit board 31 and another circuit board.

According to this, a notch portion 313 is formed in the circuit board 31, and a plurality of circuit boards 31 are basically connected to each other by a division portion 312 which is a portion other than the portion in which the notch portion 313 is formed. Therefore, when the plurality of circuit boards 31 are bent and divided, they can be divided with a small force. Therefore, the stress related to the circuit board 31 is reduced, and the stress related to the electrical component such as the integrated circuit 34 and the circuit board 31 is reduced. Therefore, it is possible to prevent the solder fixing the integrated circuit 34 and the circuit board 31 from being cracked or the integrated circuit 34 from falling off from the circuit board 31. As a result, the connection unit 30 that suppresses cracks and breakage between the circuit board 31 on which the electric component is mounted and the electric component is provided. In addition, the non-defective rate of the connection unit 30 can be improved.

Further, a plurality of notch portions 313 are formed in one edge portion 310 in this case. According to this, the effect of reducing the stress applied to the circuit board 31 by the notch portion 313 can be further obtained.

Further, the circuit board 31 is rectangular, and the notch portion 313 and the division portion 312 are formed at the edge portion 310 in the longitudinal direction of the circuit board 31. According to this, the design can be performed after ensuring a sufficient length of each of the cutout portion 313 and the split portion 312 as compared with the case where the cutout portion 313 and the split portion 312 are formed on the edge portion 310 in the lateral direction. More freedom.

Furthermore, the electric component includes an integrated circuit 34 as a first electric component sandwiched between the notch portions 313, and a connection portion 33 and a power supply side socket 32 as a second electric component sandwiched between the divided portions 312. Consists of including. The connection portion 33 and the power supply side socket 32 are more resistant to stress than the integrated circuit 34. According to this, since the dividing portion 312 is provided around the connecting portion 33 and the power supply side socket 32 which are stronger against stress, even if some stress is applied when the circuit board 31 is divided, the connecting portion 33 or the power supply side It is possible to reduce the risk of cracks or dropouts between the socket 32 and the circuit board 31. Further, since the notch 313 is provided around the integrated circuit 34 having a low strength against stress, it is possible to suppress the application of stress between the integrated circuit 34 and the circuit board 31, and the integrated circuit 34 and the circuit board 31 are prevented from being stressed. It is possible to effectively suppress the occurrence of cracks and dropouts between the two.

The connection unit 30 as an electric device further includes a holding member 50 that holds the circuit board 31. The holding member 50 has a fitting portion 55 formed so as to project toward the circuit board 31 side. The circuit board 31 has a fitted portion 311 that fits with the fitting portion 55 at the edge portion 310. According to this, when the connecting unit 30 is mounted on the holding member 50, the positioning between the connecting unit 30 and the holding member 50 becomes easy, so that the workability at the time of manufacturing is improved.

Here, consider the case where the fitted portion 311 is provided in the divided portion 312. That is, consider the case where the fitted portion 311 is formed by cutting out the divided portion 312 toward the inside of the circuit board 31. In this case, the area of the divided portion 312 is reduced. Therefore, at the time of manufacturing the connection unit 30, the ratio of the divided portion 312 which is the boundary portion between one circuit board 31 and the other circuit board 31 and connects the two is reduced. As a result, the rigidity of the entire seat member 90 may decrease. Then, for example, when the connection portion 33, the integrated circuit 34, the power supply side socket 32, and the like are mounted on the individual circuit boards 31 on the seat member 90 by a machine, the seat member 90 having reduced rigidity is damaged. Mounting work of electrical components can be difficult.

On the other hand, according to the present embodiment, the fitted portion 311 is provided in the notch portion 313. That is, the fitted portion 311 is formed by further cutting out the cutout portion 313 toward the inside of the circuit board 31. According to this, since it is a boundary portion between one circuit board 31 and another circuit board 31 and the ratio of the divided portion 312 connecting the two is not reduced, the rigidity of the seat member 90 is lowered more than necessary. Never. Therefore, for example, when the connection portion 33, the integrated circuit 34, the power supply side socket 32, and the like are mounted on the individual circuit boards 31 on the seat member 90 by a machine, the seat member 90 having reduced rigidity may be damaged. However, it is possible to prevent the mounting work of electrical components from becoming difficult.

Further, the refrigerator 1 of the present embodiment includes a connection unit 30 as an electric device. The connection unit 30 includes a connection portion 33 as an electric component, an integrated circuit 34, a power supply side socket 32, and a circuit board 31 on which the electric component is mounted. The circuit board 31 is manufactured by dividing a plurality of circuit boards 31, and has a notch 313 formed by cutting out the edge 310 of the circuit board 31 and a notch 313 of the edge 310. It has a divided portion 312 which is provided in a portion other than the portion where the circuit board is formed and is a boundary portion between the circuit board 31 and another circuit board. This also suppresses damage to the connection unit 30 on which the electric components are mounted at high density and cracks between the electric components and the circuit board 31, and improves the non-defective rate of the connection unit 30 and the refrigerator 1 as a whole. Can be done.

In the above embodiment, the terminal according to the USB standard is disclosed as an example of the connection portion 33, but the connection portion 33 is not limited to the terminal according to the USB standard as long as it is of a standard capable of supplying power.
Further, the external device 80 connected to the connection unit 30 may be a personal computer or the like in addition to a portable information terminal such as a smartphone or a tablet.
Furthermore, the connection portion 33 and the power supply side socket 32 may be arranged at both ends of the circuit board 31 in the lateral direction. In that case, the connection portion 33, the integrated circuit 34, and the power supply side socket 32 are arranged in order in the lateral direction of the circuit board 31.

The above embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The present embodiment and its modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Refrigerator, 10 ... Refrigerator body, 11 ... Refrigerator room (storage room), 12 ... Vegetable room (storage room), 13 ... Ice making room (storage room), 14 ... Small freezer room (storage room), 15 ... Freezer room (Storage room), 21 ... Right refrigerating room door (door), 30 ... Connection unit, 31 ... Circuit board, 311 ... Fitted part, 312 ... Divided part, 313 ... Notch part, 33 ... Connection part, 34 ... Integrated circuit, 40 ... accommodating part, 50 ... holding member, 55 ... fitting part, 80 ... external device, 90 ... sheet member, 91 ... ear part, 92 ... slit, 93 ... groove part

Claims (7)

Installed in the refrigerator
With electrical parts
A circuit board on which the electric component is mounted is provided.
The circuit board
It is manufactured by dividing multiple circuit boards.
A notch formed by notching the edge of the circuit board and
It has a divided portion which is provided in a portion of the edge portion other than the portion where the notch portion is formed and is a boundary portion between the circuit board and another circuit board.
Electrical equipment. The electric device according to claim 1, wherein a plurality of the notches are formed in one of the edges. The circuit board is rectangular
The notch portion and the divided portion are formed at an edge portion in the longitudinal direction of the circuit board.
The electric device according to claim 1 or 2. The electrical component is
The first electric component sandwiched between the notches and
It is configured to include a second electric component sandwiched between the divided portions.
The second electrical component is more resistant to stress than the first electrical component.
The electric device according to any one of claims 1 to 3. The electric device further includes a holding member for holding the circuit board.
The holding member has a fitting portion formed so as to project toward the circuit board.
The circuit board has a fitted portion that fits with the fitting portion at the edge portion.
The electric device according to any one of claims 1 to 4. The electric device according to claim 4, wherein the fitted portion is provided in the notch portion. With electrical parts
It has a circuit board on which the electric component is mounted, and has
The circuit board
A notch formed by cutting out an edge of the circuit board, which is manufactured by dividing a plurality of circuit boards, and a notch.
It has a divided portion which is provided in a portion of the edge portion other than the portion where the notch portion is formed and is a boundary portion between the circuit board and another circuit board.
Refrigerator with electrical equipment.

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