JP2023120658A - damper device and refrigerator - Google Patents

Abstract

To simplify wiring work of a damper device provided with a heater and to reduce conduction failure.SOLUTION: A damper device 1 includes: a frame 2 provided with an opening 20 opened/closed by a baffle 4; a case 3 housing a drive mechanism 6 in between itself and a bulkhead plate 23; and a heater 9 fixed to a frame part 21 surrounding the opening 20. Wiring of a motor 61 and a heater 9 is performed by using a wiring board 8 without using a lead wire. That is, when assembling the case 3 housing the drive mechanism 6 with the wiring board 8, a terminal member 37 for external connection of the case 3 and a motor terminal member 70 of the motor 61 are simultaneously inserted in holes of the wiring board 8 and connected to the wiring board 8, and then a heater terminal member 10 to be connected to the heater 9 is inserted in the holes of the wiring board 8 from above the wiring board 8 and connected to the wiring board 8. Thereby, wiring work can be simplified. In addition, conduction failure due to stress imparted to the lead wire or a soldered part is reduced.SELECTED DRAWING: Figure 5

Description

The present invention relates to damper devices and refrigerators.

A damper device arranged in a cold air passage or the like of a refrigerator includes a frame having a frame portion provided with an opening, a baffle rotatably supported by the frame, and a drive mechanism for driving the baffle, The drive mechanism is housed inside a case member coupled to a partition plate provided at the end of the frame. A heater is arranged in the frame so as to surround the opening in order to prevent the baffle from freezing to the frame and becoming stuck. A lead wire for energizing the heater is routed along the partition plate, joins the wiring for the motor inside the case, and is pulled out of the case together with the wiring for the motor.

JP 2019-211195 A

In the damper device described in Patent Literature 1, both the wiring for the motor and the wiring for the heater are composed of lead wires. Therefore, when assembling the damper device, it is necessary to route the lead wires. Therefore, it is difficult to automate the assembly work, and it is difficult to simplify the assembly work. In addition, when the lead wires are routed, stress is likely to be applied to the soldered portions and the lead wires, which may lead to defective conduction.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to simplify the wiring work of a damper device having a heater for anti-icing and to reduce poor conduction.

In order to solve the above-described problems, a damper device according to the present invention includes a frame including a frame surrounding an opening and a partition plate disposed at an end of the frame; a baffle for opening and closing a portion; a drive mechanism having a motor for driving the baffle; a case coupled to the frame and housing the drive mechanism and the wiring board between the partition plate; and a heater terminal member that connects the wiring board and the heater, the case holds the external connection terminal member that protrudes toward the partition plate, and the motor includes the A motor terminal member protruding in the same direction as the external connection terminal member is held, and the wiring board includes a first hole into which the external connection terminal member is inserted, and a first hole into which the external connection terminal member is inserted. A second hole into which the heater terminal member is inserted from the same direction as the member, and a third hole into which the heater terminal member is inserted from the opposite direction to the external connection terminal member and the motor terminal member. and

In the present invention, the drive mechanism having the motor is accommodated inside the case coupled to the partition plate of the frame, and the heater is fixed to the frame portion of the frame. A wiring board is housed inside the case together with the driving mechanism, and the motor terminal member and the heater terminal member are connected to the wiring board. can be connected to , wiring work is easy. That is, since the terminal members (external connection terminal member, motor terminal member) provided on the case and the motor respectively protrude to the same side, when the wiring board is assembled to the case containing the drive mechanism, the external connection terminals The member and the motor terminal member can be inserted into the first hole and the second hole at the same time and connected to the wiring board. Next, the heater terminal member can be inserted into the third hole from above the wiring board and connected to the wiring board. Finally, when connecting the partition plate to the case, the heater terminal member can be connected to the heater arranged on the frame side. Therefore, the wiring work of the motor and the heater can be performed simultaneously by assembling the wiring board and the terminal members from one direction, so that the wiring work can be simplified. In addition, since no lead wire is used, it is possible to reduce conduction failure due to stress applied to the lead wire or soldered portions.

In the present invention, the motor includes a motor case and a terminal block protruding to the outer peripheral side of the motor case, and the case is opposite to the terminal block with respect to the motor case when viewed from the partition plate side. The wiring board includes a first portion that contacts the terminal member holding portion from the partition plate side, and a second portion that contacts the terminal block from the partition plate side. and a third portion extending from the first portion to the second portion on the outer peripheral side of the motor case. With this configuration, the terminal block on the motor side and the terminal member holding portion on the case side, which are separated from each other with the motor case interposed therebetween, can be connected by a single wiring board. Wiring work can be simplified compared to the case of connecting between them with lead wires.

In the present invention, it is preferable that the motor includes a terminal cover that covers the terminal block, and the heater terminal member is held by the terminal cover. In this way, the soldering work between the heater terminal member and the wiring board can be easily performed. Moreover, when connecting the case and the frame, the heater terminal member can be easily connected to the heater.

In the present invention, the case includes a case member and a connector member held by the case member, the terminal member holding portion is made of the connector member, and the external connection terminal member is separated from the connector member by the partition wall. It is preferable that the case member has a connector insertion opening that protrudes toward the plate and exposes the connector member to the outer surface of the case. With this configuration, the external wiring can be easily connected to the damper device by attaching and detaching the mating connector to and from the external connection terminal member.

In the present invention, the heater includes a projecting portion provided at an end portion on the partition plate side, a conductive portion is exposed on the surface of the projecting portion, and the heater terminal member has a through hole penetrating through the partition plate. It is preferable to provide a contact portion that sandwiches the projecting portion that is passed through the portion and extends to the inside of the case. In this way, when the case and the frame are joined together, the projecting portion of the heater can be sandwiched between the contact portions at the same time, thus facilitating wiring of the heater wire.

In the present invention, it is preferable that the contact portion is a leaf spring portion. In this way, the spring property can be used to ensure that the heater terminal member is brought into contact with the conduction portion of the heater to establish conduction.

In the present invention, the heater terminal member includes a first member that is fixed to the heater and a second member that is connected to the wiring board. It is preferable that the second member is held by a contact portion provided at the tip of the first member. With this configuration, when the case and the frame are connected, the heater and the wiring board are connected by connecting the first member held on the frame side (partition plate side) and the second member held on the case side. can be connected. Therefore, compared to the case where the sheet-shaped heater is connected by inserting it into the contact portion of the metallic heater terminal member, it is easier to reliably establish electrical continuity.

In the present invention, the heater terminal member includes a contact portion that is passed through a through portion penetrating the partition plate and extends between the partition plate and the opening, and the contact portion is provided on the surface of the heater. It is preferable that it is a plate spring portion that makes elastic contact with the exposed conductive portion. In this way, the wiring work can be facilitated because it is sufficient to pass the metallic terminal member instead of the sheet-like heater through the penetrating portion of the partition plate. In addition, since the conductive portion between the heater and the terminal member is arranged outside the closed structure formed by the case and the partition plate, the conductive portion can be visually confirmed.

In the present invention, it is preferable to provide a sealing material that closes the through portion. By doing so, it is possible to prevent or suppress moisture from entering the space in which the drive mechanism is arranged through the through portion.

In the present invention, the frame portion includes a positioning projection projecting from the surface covered with the heater, and a heat-sealing portion for fixing the heater that abuts on the tip end face of the positioning projection is provided on the tip end face of the positioning projection portion. is preferably provided. With this configuration, the heater can be positioned at an appropriate position, so that the conductive portion provided on the heater can be appropriately brought into contact with the heater terminal member. Alternatively, the first member fixed to the heater can be brought into proper contact with the second member soldered to the wiring board.

The damper device according to the present invention can be used in a refrigerator, the refrigerator has a cooler and a storage chamber to which cold air generated by the cooler is supplied, and the damper device is adapted to cool the cold air in the storage chamber. placed at the intake.

In the present invention, the drive mechanism having the motor is accommodated inside the case coupled to the partition plate of the frame, and the heater is fixed to the frame portion of the frame. A wiring board is housed inside the case together with the driving mechanism, and the motor terminal member and the heater terminal member are connected to the wiring board. can be connected to , wiring work is easy. That is, since the terminal members (external connection terminal member, motor terminal member) provided on the case and the motor respectively protrude to the same side, when the wiring board is assembled to the case containing the drive mechanism, the external connection terminals The member and the motor terminal member can be inserted into the first hole and the second hole at the same time and connected to the wiring board. Next, the heater terminal member can be inserted into the third hole from above the wiring board and connected to the wiring board. Finally, when connecting the partition plate to the case, the heater terminal member can be connected to the heater arranged on the frame side. Therefore, the wiring work of the motor and the heater can be performed simultaneously by assembling the wiring board and the terminal members from one direction, so that the wiring work can be simplified. In addition, since no lead wire is used, it is possible to reduce conduction failure due to stress applied to the lead wire or soldered portion.

It is the perspective view which looked at the damper apparatus to which this invention is applied from the baffle side. FIG. 2 is an exploded perspective view of the damper device shown in FIG. 1; 3 is an exploded perspective view of the case, geared motor, and wiring board; FIG. 1 is an exploded perspective view of a geared motor; FIG. It is a perspective view which shows the wiring connection structure of a geared motor and a heater. A cross-sectional view showing the state of connection between the conductive portion of the heater and the terminal member for the heater (cross-sectional view taken along line AA in FIG. 1), and a cross-sectional view showing the fixing location of the heater (position BB in FIG. 1). is a cross-sectional view cut at . 3 is a perspective view of a geared motor, a wiring board, and a heater terminal member; FIG. 3 is an exploded perspective view of a geared motor, a wiring board, and a heater terminal member; FIG. It is explanatory drawing of a refrigerator provided with the damper apparatus shown in FIG. FIG. 8 is an explanatory diagram of a wiring structure using the heater terminal member of Modification 1 and a cross-sectional view of the heater terminal member; FIG. 11 is an explanatory diagram of a wiring structure using a heater terminal member of modification 2;

A damper device for a refrigerator to which the present invention is applied will be described below with reference to the drawings. In this specification, XYZ are directions perpendicular to each other. The direction along the rotation center axis L of the baffle 4 is defined as the X direction. An opening 20 opened and closed by the baffle 4 faces the Z direction. One side in the X direction is X1, the other side in the X direction is X2, one side in the Y direction is Y1, the other side in the Y direction is Y2, and one side in the Z direction is Z1. The other side will be described as Z2.

(overall structure)
FIG. 1 is a perspective view of a damper device 1 to which the present invention is applied, viewed from the baffle 4 side. FIG. 2 is an exploded perspective view of the damper device 1 shown in FIG. 3 is an exploded perspective view of the case 3, geared motor 60, and wiring board 8. FIG. 4 is an exploded perspective view of the geared motor 60. FIG. FIG. 5 is a perspective view showing the wiring connection structure of the geared motor 60 and the heater 9. As shown in FIG.

As shown in FIGS. 1 and 2, the damper device 1 includes a frame 2 provided with an opening 20 opening in the Z direction, a baffle 4 rotatably supported by the frame 2, and a and case 3. Frame 2 and case 3 are made of resin. The baffle 4 rotates around a rotation center axis L extending in the X direction to open and close the opening 20 .

The frame 2 is formed integrally with a frame portion 21 provided with an opening 20, a rectangular tube-shaped body portion 22 projecting in the Z1 direction from the outer edge of the frame portion 21, and a side plate portion of the body portion 22 in the X1 direction. and a tubular portion 24 in the shape of a rectangular tube protruding from the outer edge of the partition plate toward the opposite side (X1 side) of the frame portion 21 . As will be described later, the case 3 faces the partition plate 23 in the X1 direction and is coupled to the cylindrical portion 24 . For example, the case 3 can be coupled to the tubular portion 24 by forming a hook (not shown) on the tubular portion 24 and engaging with a projection provided on the case 3 . The partition plate 23 , the tubular portion 24 , and the case 3 constitute a rectangular parallelepiped housing that accommodates the drive mechanism 6 that drives the baffle 4 .

The frame 2 includes a side plate 25 arranged at the end of the frame portion 21 on the X2 side and facing the partition plate 23 in the X direction. The frame 2 also includes a rectangular tubular seal plate portion 26 projecting from the edge of the opening 20 in the frame portion 21 toward the side (Z1 direction) where the baffle 4 is located. A rectangular heater 9 surrounding the seal plate portion 26 is attached to the frame portion 21 . The damper device 1 prevents the baffle 4 from becoming stuck due to freezing by energizing the heater 9 to generate heat.

Baffle 4 is rotatably supported between partition plate 23 and side plate 25 . A columnar portion 41 projecting toward the X1 side and a columnar portion 42 projecting toward the X2 side are formed on the edge of the baffle 4 on the Y2 side. A cylindrical portion 43 is formed at the tip of the columnar portion 41 to fit a cylindrical projection 27 projecting from the partition plate 23 toward the baffle 4 . A shaft portion 44 that fits into a shaft hole 28 formed in the side plate 25 is formed at the tip of the cylindrical portion 42 . Therefore, the baffle 4 is rotatably supported by the frame 2 with the axis line connecting the center of the protrusion 27 and the center of the shaft hole 28 as the rotation center axis line L. As shown in FIG.

The baffle 4 has a resin opening/closing plate 45 larger than the opening 20 and a sheet-like elastic member 46 made of foamed polyurethane or the like attached to the opening 20 side surface of the opening/closing plate 45 . The baffle 4 is driven by a drive mechanism 6, which will be described later, to rotate about the rotation center axis L and move to a closed position for closing the opening 20 and an open position for opening the opening 20. As shown in FIG. At the closed position, the elastic member 46 contacts the seal plate portion 26 .

The damper device 1 is arranged, for example, inside a duct or the like that constitutes a cold air passage. Cold air flows through the opening 20 from the side opposite to the side on which the baffle 4 is arranged with respect to the opening 20 . Cold air may also flow through the opening 20 from the side where the baffle 4 is located relative to the opening 20 .

(Case)
As shown in FIGS. 2 and 3, the case 3 includes a bottom plate 31 facing the partition plate 23 from the side opposite to the frame portion 21 (X1 direction), and a corner protruding from the bottom plate 31 toward the partition plate 23 side. and a tubular portion 32 . When viewed from the X direction, the bottom plate 31 and the cylindrical portion 32 are quadrangular with long sides extending in the Y direction and short sides extending in the Z direction. The tubular portion 32 has side plates 321 and 322 facing each other in the Z direction and side plates 323 and 324 facing each other in the Y direction. A cylindrical shaft support portion 33 and a pair of support plate portions 34 and 35 are arranged inside the cylindrical portion 32 . The shaft support portion 33 and the support plate portions 34 and 35 protrude from the bottom plate 31 in the X2 direction.

As shown in FIG. 3 , the case 3 includes a case member 30 having a bottom plate 31 and a cylindrical portion 32 and a connector member 36 held by the case member 30 . The connector member 36 is arranged in a notch 325 provided in the side plate 321 of the case member 30 . The connector member 36 holds an external connection terminal member 37 made of a metal terminal pin. The external connection terminal member 37 protrudes from the connector member 36 toward the partition plate 23 (X2 direction). The connector member 36 holds six external connection terminal members 37 arranged in the Y direction. Four of the six external connection terminal members 37 are connected to the driving mechanism 6 and two are connected to the heater 9 attached to the frame portion 21 of the frame 2 .

The bottom plate 31 of the case 3 is provided with a connector insertion opening 38 formed by cutting out a portion facing the connector member 36 from the X1 side. The end of the connector member 36 on the X1 side is exposed to the outer surface of the case 3 through the connector insertion opening 38 . Therefore, it is possible to connect the external connection terminal member 37 to an external wiring such as a feeder line or a signal line by attaching or detaching the mating connector to the connector member 36 .

(Driving mechanism 6)
As shown in FIG. 2 , the drive mechanism 6 is housed between the case 3 and the partition plate 23 . The drive mechanism 6 includes a geared motor 60 and an output member 69 driven by the geared motor 60 . The output member 69 includes a shaft portion 691 fitted to the shaft support portion 33 of the case 3 and a sector gear 692 projecting radially from the shaft portion 691 . The output member 69 is rotatably supported by the bottom plate 31 via the shaft support portion 33 of the case 3 . The tip portion of the shaft portion 691 extending in the X2 direction passes through the cylindrical protrusion 27 provided on the partition plate 23 and fits into a connecting hole provided inside the cylindrical portion 41 of the baffle 4 . Thereby, the baffle 4 is connected to the output member 69 .

As shown in FIG. 4 , the geared motor 60 includes a motor 61 and a gear transmission mechanism 62 that transmits rotation of the motor 61 to an output member 69 . The motor 61 includes a bottomed cylindrical metal motor case 63 , an end plate 64 closing an open end of the motor case 63 , a cylindrical stator 65 arranged inside the motor case 63 , and an inner side of the stator 65 . A motor 61, which is a stepping motor, is composed of a motor case 63, a rotor and a stator 65, which has a rotor (not shown) arranged in the rim and a partition member 66 arranged between the end plate 64 and the stator 65. be.

The gear transmission mechanism 62 includes a train wheel 621 composed of a plurality of gears arranged between the partition member 66 and the end plate 64 and an output wheel 622 driven via the train wheel 621 . Rotation of the rotor is decelerated by the train wheel 621 and transmitted to the output wheel 622 . The output wheel 622 has a gear 623 that meshes with the final stage gear of the gear train 621, a shaft portion 624 extending from the center of the gear 623 in the X2 direction, and a shaft support portion 641 provided on the end plate 64. and a gear 625 (see FIG. 2) connected to the tip of a shaft portion 624 projecting outward. Gear 625 meshes with sector gear 692 of output member 69 .

The motor 61 includes a terminal block 67 projecting outward from the motor case 63 and a terminal cover 68 covering the terminal block 67 . The terminal cover 68 is arranged in the notch 631 of the motor case 63 . The terminal block 67 is arranged radially outside the insulator 652 around which the stator coil 651 is wound, and is integrally formed with the insulator 652 . The terminal block 67 holds a motor terminal member 70 made of a metal terminal pin. A plurality of motor terminal members 70 protrude from the terminal block 67 with their tips directed in the X2 direction. A stator coil 651 is electrically connected to the motor terminal member 70 .

When arranging the geared motor 60 inside the case 3 , the motor case 63 is arranged between the pair of support plate portions 34 and 35 provided in the case 3 , and two concave portions provided on the edge of the end plate 64 are arranged. The convex portions 341 and 351 provided at the tips of the support plate portions 34 and 35 are fitted to 642 . Thereby, the motor case 63 is positioned with respect to the case 3 .

(wiring board)
A wiring substrate 8 is arranged between the partition plate 23 and the case 3 . As shown in FIG. 5, the wiring board 8 has a shape surrounding the outer peripheral side of the motor case 63 as a whole. The wiring board 8 has a first portion 81 that contacts the connector member 36 arranged in the case 3 from the partition plate 23 side (X2 side), and a second portion 81 that contacts the terminal cover 68 provided on the motor 61 from the X2 side. A portion 82 and a third portion 83 extending from the first portion 81 to the second portion 82 on the outer peripheral side of the motor case 63 .

The connector member 36 and the terminal block 67 are arranged on the opposite side of the motor case 63 when viewed from the X2 direction. As shown in FIGS. 3 and 5, the case 3 is rectangular when viewed from the X2 direction, and the connector members 36 are arranged at the corners of the case 3 . The terminal block 67 is positioned diagonally with respect to the corner where the connector member 36 is arranged. The wiring board 8 extends from the connector member 36 along the side plate 324 of the case 3 in the Z2 direction, bends in the Y1 direction, and extends along the side plate 321 to the terminal block 67 .

As shown in FIG. 3, the wiring board 8 has six first holes 84 penetrating the first portion 81, five second holes 85 penetrating the second portion 82, and a third portion 83. It is provided with two third holes 86 to be used. A wiring pattern extending from the first portion 81 to the second portion 82 and the third portion 83 is formed on the wiring substrate 8 . The wiring pattern includes a motor wiring pattern 87 connecting the first hole 84 and the second hole 85 and a heater wiring pattern 88 connecting the first hole 84 and the third hole 86 .

Therefore, by soldering the external connection terminal member 37 to the first hole 84 and soldering the motor terminal member 70 to the second hole 85, power can be supplied to the motor 61 through the wiring board 8. can. Further, by soldering a heater terminal member 10 to be described later in the third hole 86 , power can be supplied to the heater 9 via the wiring board 8 and the heater terminal member 10 .

(heater)
As shown in FIG. 1, a rectangular heater 9 surrounding the opening 20 is attached to the surface 210 of the frame portion 21 of the frame 2 on the side (Z1 side) where the baffle 4 is located. The heater 9 is
It is a flexible heater sheet in which a heater wire 91 is sealed between two transparent insulating films 90 . As shown in FIG. 2 , the frame portion 21 has welding projections 211 projecting from a surface 210 covered with the heater 9 . The heater 9 is positioned on the frame portion 21 by passing the welding protrusions 211 through the holes 94 of the insulating film 90 . The heater 9 is fixed to the frame portion 21 by forming the heat-sealed portion 212 by crushing the tip of the welding convex portion 211 (see FIG. 6B).

FIG. 6 is a cross-sectional view (cross-sectional view taken along the line AA in FIG. 1) showing the connection state between the conductive portion 93 of the heater 9 and the heater terminal member 10, and a cross-sectional view showing the fixing location of the heater 9. FIG. 2 is a cross-sectional view taken along the line BB in FIG. 1; As shown in FIGS. 2 and 5, the heater 9 has two projecting portions 92 projecting in the X1 direction from the edge on the partition plate 23 side (X1 direction). Each projecting portion 92 is provided with a conductive portion 93 of the heater wire 91 exposed on the surface of the insulating film 90 . As shown in FIG. 5 , each of the two conductive portions 93 is connected to the heater wiring pattern 88 of the wiring board 8 via the heater terminal member 10 .

As shown in FIGS. 2 and 6A, the frame 2 is formed with two penetrating portions 95 penetrating through the partition plate 23 . As shown in FIG. 6( a ), two projecting portions 92 provided on the heater 9 pass through the through portions 95 of the partition plate 23 and extend into the space between the partition plate 23 and the case 3 . ing. A gap between the projecting portion 92 and the penetrating portion 95 is closed with a sealing material 96 such as an adhesive.

As shown in FIG. 2 , of the plurality of welding protrusions 211 formed on the surface 210 of the frame 21 , two welding protrusions 211 provided along the partition plate 23 It protrudes from the tip surface 214 of the positioning protrusion 213 which protrudes from the surface 210 of the . As shown in FIG. 6B, by bringing the heater 9 into contact with the tip surface 214 of the positioning projection 213, the edge of the heater 9 in the X1 direction is positioned in the Z direction. As a result, the projecting portion 92 is properly positioned in the Z direction, so that the projecting portion 92 properly passes through the through portion 95 of the partition plate 23 .

(Terminal member for heater)
FIG. 7 is a perspective view of the geared motor 60, the wiring board 8, and the heater terminal member 10. FIG. FIG. 8 is an exploded perspective view of the geared motor 60, the wiring board 8, and the heater terminal member 10. FIG. As shown in FIG. 8, the heater terminal member 10 includes a terminal portion 11 connected to the wiring board 8, a contact portion 12 contacting the conductive portion 93 of the heater 9, and connecting the terminal portion 11 and the contact portion 12 together. An arm portion 13 is provided. The heater terminal member 10 is formed by bending a metal.

As shown in FIG. 7 , the terminal portion 11 protrudes in the X1 direction from the Z2-direction end of the arm portion 13 extending in the Z-direction, and the tip thereof is inserted through the third hole 86 of the wiring board 8 . A tip of the terminal portion 11 is soldered to the third hole 86 . The contact portion 12 is a pair of leaf spring portions extending in the X2 direction from the end of the arm portion 13 in the Z1 direction. The pair of leaf spring portions are bent in a direction in which central portions in the X direction approach each other. As shown in FIG. 6A, when the projecting portion 92 of the heater 9 is inserted from the through portion 95 of the partition plate 23 in the X1 direction, the projecting portion 92 is inserted between the pair of plate spring portions that constitute the contact portion 12. be done. As a result, the leaf spring portion elastically contacts the conductive portion 93 exposed on the surface of the projecting portion 92 , so that the heater wire 91 is electrically connected to the heater terminal member 10 .

As shown in FIG. 7 , the heater terminal member 10 is held by a terminal cover 68 that covers the terminal block 67 of the motor 61 . As shown in FIG. 4, the terminal cover 68 includes a terminal cover main body 71 surrounding the terminal block 67 on both sides in the radial direction and in the circumferential direction, and a support plate projecting radially outward from the end of the terminal cover main body 71 in the X2 direction. 72 and a terminal holding portion 73 projecting from the support plate 72 in the X2 direction. The terminal holding portions 73 are formed at two locations separated in the Y direction.

When the arm portion 13 of the heater terminal member 10 is inserted into the terminal holding portion 73 from the X2 direction, the heater terminal member 10 is held by the terminal cover 68 with the tip portion of the terminal portion 11 directed in the X1 direction. The wiring board 8 is positioned on the X1 side with respect to the support plate 72 . Therefore, when the arm portion 13 is inserted to a position where it contacts the support plate 72, the tip of the terminal portion 11 is inserted into the third hole 86 of the wiring board 8 from the X2 side.

(refrigerator)
FIG. 9 is an explanatory diagram of refrigerator 100 including damper device 1 shown in FIG. In a refrigerator 100 shown in FIG. 9, a refrigerator main body 110 includes a plurality of storage chambers 111 and a cold air duct 112 that supplies cold air to the plurality of storage chambers 111. The cold air duct 112 communicates with the storage chambers 111. Cool air intake 113 is provided with damper device 1 to which the present invention is applied. Refrigerator main body 110 also includes cooler 114 that generates cool air, fan 115 arranged in cool air duct 112 , and control device 120 . The control device 120 controls the opening/closing operation of the damper device 1 based on a signal from a sensor (not shown) provided in the storage chamber 111 to adjust the supply timing and amount of cool air to the storage chamber 111 .

(Main actions and effects of this embodiment)
As described above, the damper device 1 of the present embodiment includes the frame 2 including the frame 21 surrounding the opening 20 and the partition plate 23 disposed at the end of the frame 21, and is rotatably supported by the frame 2 to allow the opening to be opened. A baffle 4 for opening and closing the portion 20, a drive mechanism 6 having a motor 61 for driving the baffle 4, a case 3 coupled to the frame 2 and accommodating the drive mechanism 6 and the wiring board 8 between the partition plate 23, It has a heater 9 fixed to the frame 21 and a heater terminal member 10 connecting the wiring board 8 and the heater 9 . The case 3 holds an external connection terminal member 37 protruding toward the partition plate 23 (X2 direction). The motor 61 holds a motor terminal member 70 protruding in the same direction (X2 direction) as the external connection terminal member 37 does. The wiring board 8 has a first hole 84 into which the external connection terminal member 37 is inserted from the X1 direction, and a second hole into which the motor terminal member 70 is inserted from the same direction as the external connection terminal member 37 (X1 direction). 85 and a third hole 86 into which the heater terminal member 10 is inserted from the opposite direction (X2 direction) to the external connection terminal member 37 and the motor terminal member 70 .

In this embodiment, a drive mechanism 6 having a motor 61 is accommodated inside a case 3 coupled to a partition plate 23 of the frame 2 , and a heater 9 is fixed to the frame portion 21 of the frame 2 . The wiring board 8 is accommodated inside the case 3 together with the driving mechanism 6, and the motor terminal member 70 and the heater terminal member 10 are connected to the wiring board 8, so that the motor 61 and the heater 9 can be connected without using lead wires. can be connected to the terminal member 37 for external connection. That is, since the terminal members (the external connection terminal member 37 and the motor terminal member 70) provided on the case 3 and the motor 61 protrude in the same side (X2 direction), the case 3 housing the drive mechanism 6 is provided with a wiring board. 8, the external connection terminal member 37 and the motor terminal member 70 can be inserted into the first hole 84 and the second hole 85 at the same time and connected to the wiring board 8. FIG. Next, the heater terminal member 10 can be inserted into the third hole 86 from above the wiring board 8 and connected to the wiring board 8 . Finally, when connecting the partition plate 23 to the case 3, the heater terminal member 10 can be connected to the heater 9 arranged on the frame side. Therefore, the wiring work of the motor 61 and the heater 9 can be performed simultaneously by assembling the wiring board 8 and the heater terminal member 10 from one direction, so that the wiring work can be simplified. In addition, since no lead wire is used, it is possible to reduce conduction failure due to stress applied to the lead wire or soldered portion. Furthermore, since lead wires are no longer required, cost reduction can be achieved.

A motor 61 of this embodiment includes a motor case 63 and a terminal block 67 protruding outward from the motor case 63 . The case 3 includes a terminal member holding portion (connector member 36 ) disposed on the side opposite to the terminal block 67 with respect to the motor case 63 when viewed from the partition plate 23 side. The wiring board 8 includes a first portion 81 contacting the connector member 36 from the partition plate 23 side, a second portion 82 contacting the terminal block 67 from the partition plate 23 side, and a first portion 82 contacting the terminal block 67 from the partition plate 23 side. and a third portion 83 extending from portion 81 to second portion 82 . Therefore, the terminal block 67 and the connector member 36, which are separated from each other with the motor case 63 interposed therebetween, can be connected to each other by a single wiring board 8, so that the terminals separated from each other can be connected with lead wires. Wiring work can be simplified compared to the case.

The motor 61 of this embodiment includes a terminal cover 68 that covers the terminal block 67 , and the heater terminal member 10 is held by the terminal cover 68 . Accordingly, the soldering work between the heater terminal member 10 and the wiring substrate 8 can be easily performed. Further, when connecting the case 3 and the frame 2, the heater terminal member 10 and the heater 9 can be easily connected.

The case 3 of this embodiment includes a case member 30 and a connector member 36 held by the case member 30, and the connector member 36 constitutes a terminal member holding portion. The external connection terminal member 37 protrudes from the connector member 36 toward the partition plate 23 , and the case member 30 includes a connector insertion opening 38 that exposes the connector member 36 to the outer surface of the case 3 . Therefore, external wiring can be easily connected to the damper device 1 by attaching and detaching the mating connector to and from the terminal member 37 for external connection. Note that the terminal member holding portion (connector member 36 ) may be formed integrally with the case member 30 .

The heater 9 of this embodiment has a projecting portion 92 projecting in the X1 direction from the end portion on the partition plate 23 side, and the conductive portion 93 is exposed on the surface of the projecting portion 92 . The heater terminal member 10 includes a contact portion 12 that sandwiches a protruding portion 92 extending inwardly of the case 3 through a penetrating portion 95 penetrating the partition plate 23 . Therefore, when connecting the case 3 and the frame 2, since the projecting portion 92 of the heater 9 can be inserted into the contact portion 12, wiring work of the wires of the heater 9 is facilitated.

In this embodiment, since the contact portion 12 of the heater terminal member 10 is a leaf spring portion, the contact portion 12 and the conduction portion 93 can be reliably brought into contact with each other by utilizing the springiness of the metal.

In this embodiment, the through portion 95 is closed with a sealing material 96 such as an adhesive. Therefore, it is possible to prevent or suppress moisture from entering the space where the drive mechanism 6 is arranged from the through portion 95 .

The frame portion 21 of this embodiment is provided with a positioning convex portion 213 that protrudes from the surface covered with the heater 9 (surface 210 on the Z1 side). Further, a heat-sealing portion 212 for fixing the heater 9 in contact with the tip surface 214 is provided on the tip surface 214 of the positioning convex portion 213 . Therefore, since the heater 9 can be positioned and fixed at an appropriate position in the Z direction, the projecting portion 92 provided on the heater 9 can be properly passed through the through portion 95 of the partition plate 23 . Therefore, the conductive portion 93 provided on the projecting portion 92 can be brought into proper contact with the heater terminal member 10 .

The damper device 1 according to this embodiment can be used in a refrigerator 100. The refrigerator 100 has a cooler 114 and a storage room 111 to which cold air generated by the cooler 114 is supplied. It is located at the cold air intake 113 in the storage compartment 111 .

(Modification)
(1) FIG. 10(a) is an explanatory diagram of a wiring structure using the heater terminal member 10A of Modification 1, and FIG. 10(b) is a heater cut at CC position of FIG. 10(a) It is a sectional view of 10 A of terminal members for. As shown in FIG. 10 , the heater terminal member 10A includes a first member 14 fixed to the end of the heater 9 on the X1 side, and a second member 15 connected to the wiring board 8 . The second member 15 includes a terminal portion 11 inserted through the third hole 86 of the wiring board 8 and soldered. The first member 14 includes a contact portion 16 that passes through the through portion 95 of the partition plate 23 and extends to the space in which the wiring substrate 8 is arranged. As shown in FIG. 10(b), the second member 15 includes a plate-like tip portion 17 extending in the opposite direction to the terminal portion 11 (X1 direction).

In the form shown in FIG. 10, when connecting the case 3 and the frame 2, the heater 9 and the heater 9 are connected by connecting the first member 14 held by the heater 9 and the second member 15 held on the case 3 side. The wiring board 8 is connected. That is, when the case 3 assembled with the drive mechanism 6 and the wiring board 8 is connected to the frame 2, the tip portion 17 of the second member 15 is inserted into and held by the contact portion 16 extending from the partition plate 23 in the X2 direction. As described above, the heater terminal member 10A is composed of two parts, and the metal parts are connected to each other to establish electrical continuity. Compared to , it is easier to reliably establish continuity.

(2) FIG. 11 is an explanatory diagram of a wiring structure using the heater terminal member 10B of Modification 2. FIG. The heater terminal member 10B of Modification 2 includes a terminal portion 11 that is inserted through a hole in the wiring board 8 and soldered, and a heater 9 that extends from the space in which the driving mechanism 6 is arranged through the through portion 95 of the partition plate 23 . is provided with a contact portion 18 extending to a space in which is arranged. The contact portion 18 is a leaf spring portion bent into a shape protruding toward the heater 9 side. The contact portion 18 elastically contacts the heater 9 that abuts on the tip surface of the positioning projection 213 provided on the frame portion 21 . As a result, the conductive portion 93 exposed on the surface of the heater 9 and the heater terminal member 10B are electrically connected.

In the form shown in FIG. 11, when connecting the case 3 and the frame 2, the contact portion 18 of the metal heater terminal member 10B can be passed through the penetrating portion 95 of the partition plate 23 instead of the end portion of the sheet-like heater 9. wiring work is easy. In addition, since the conductive portion between the heater 9 and the contact portion 18 is arranged outside the sealed space in which the drive mechanism 6 and the wiring board 8 are accommodated, the conductive portion can be visually confirmed.

(Other embodiments)
The above embodiment is an example of a preferred embodiment of the present invention, but it is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, the tubular portion 24 projecting from the edge of the partition plate 23 toward the case 3 may be omitted, and the tubular portion 32 of the case 3 may be coupled to the partition plate 23 . Moreover, the planar shape of the wiring board 8 is not limited to the above-described form, and can be appropriately changed according to the arrangement of the connector member 36 and the arrangement of the terminal block 67 in the motor 61 . Moreover, although the damper device 1 in the embodiment described above is for a refrigerator, it is not necessarily limited to a damper device used for a refrigerator.

DESCRIPTION OF SYMBOLS 1... Damper apparatus, 2... Frame, 3... Case, 4... Baffle, 6... Drive mechanism, 8... Wiring board, 9... Heater, 10, 10A, 10B... Terminal member for heater, 11... Terminal part, 12... Contact Part 13 Arm 14 First member 15 Second member 116, 18 Contact 17 Tip 20 Opening 21 Frame 22 Body 23 Partition plate , 24... Cylindrical part 25... Side plate 26... Seal plate part 27... Projection 28... Shaft hole 30... Case member 31... Bottom plate 32... Cylindrical part 33... Shaft support part 34... Support plate Part 36... Connector member 37... External connection terminal member 38... Connector insertion port 41, 42... Cylindrical part 43... Cylindrical part 44... Shaft part 45... Open/close plate 46... Elastic member 60 ... Geared motor 61 ... Motor 62 ... Gear transmission mechanism 63 ... Motor case 64 ... End plate 65 ... Stator 66 ... Partition member 67 ... Terminal block 68 ... Terminal cover 69 ... Output member 70 ... Motor terminal member 71 Terminal cover body 72 Support plate 73 Terminal holding part 81 First part 82 Second part 83 Third part 84 First hole 85 Second Hole 86 Third hole 87 Wiring pattern for motor 88 Wiring pattern for heater 90 Insulating film 91 Heater wire 92 Protruding portion
93...Conducting part, 94...Hole, 95...Through part, 96...Sealing material, 100...Refrigerator, 110...Refrigerator main body, 111...Store room, 112...Cold air duct, 113...Cold air intake, 114...Cooler, DESCRIPTION OF SYMBOLS 115... Fan 120... Control device 210... Surface of frame part 211... Welding convex part 212... Heat sealing part 213... Positioning convex part 214... Tip surface 321, 322, 323, 324... Side plate , 325... Notch portion 341, 351... Convex portion 621... Train wheel 622... Output wheel 623... Gear 624... Shaft portion 625... Gear 631... Notch 641... Shaft support portion 642... Recess 651 Stator coil 652 Insulator 691 Shaft 692 Sectoral gear L Rotation center axis

Claims (11)

a frame comprising a frame surrounding the opening and partition plates disposed at the ends of the frame;
a baffle that is rotatably supported by the frame and opens and closes the opening;
a drive mechanism comprising a motor for driving the baffle;
a case coupled to the frame and housing the drive mechanism and the wiring board between the partition plate;
a heater fixed to the frame;
a heater terminal member that connects the wiring board and the heater,
The case holds an external connection terminal member protruding toward the partition plate,
The motor holds a motor terminal member projecting in the same direction as the external connection terminal member,
The wiring board is
a first hole into which the external connection terminal member is inserted;
a second hole into which the motor terminal member is inserted from the same direction as the external connection terminal member;
A damper device, comprising: a third hole into which the heater terminal member is inserted from a direction opposite to that of the external connection terminal member and the motor terminal member. The motor includes a motor case and a terminal block protruding from the outer peripheral side of the motor case,
the case includes a terminal member holding portion disposed on the opposite side of the motor case to the terminal block when viewed from the partition plate side,
The wiring board includes a first portion that contacts the terminal member holding portion from the partition plate side, a second portion that contacts the terminal block from the partition plate side, and an outer peripheral side of the motor case. 2. The damper device of claim 1, comprising a third portion extending from one portion to said second portion. The motor includes a terminal cover that covers the terminal block,
3. The damper device according to claim 2, wherein the heater terminal member is held by the terminal cover. the case includes a case member and a connector member held by the case member;
The terminal member holding portion is made of the connector member,
The terminal member for external connection protrudes from the connector member toward the partition plate,
4. The damper device according to claim 2, wherein the case member has a connector insertion opening for exposing the connector member to the outer surface of the case. the heater includes a projecting portion provided at an end on the partition plate side, and a conductive portion is exposed on the surface of the projecting portion;
5. The heater terminal member according to any one of claims 1 to 4, wherein the heater terminal member includes a contact portion which is passed through a through portion penetrating through the partition plate and extends to the inside of the case so as to sandwich the projecting portion. A damper device as described. 6. The damper device according to claim 5, wherein the contact portion is a leaf spring portion. The heater terminal member includes a first member fixed to the heater and a second member connected to the wiring board,
The first member is passed through a penetrating portion penetrating the partition plate,
The damper device according to any one of claims 1 to 4, wherein the second member is held by a contact portion provided at the tip of the first member. The heater terminal member includes a contact portion that is passed through a penetrating portion penetrating the partition plate and extends between the partition plate and the opening,
The damper device according to any one of claims 1 to 4, wherein the contact portion is a plate spring portion that elastically contacts the conductive portion exposed on the surface of the heater. The damper device according to any one of claims 5 to 8, further comprising a sealing material that closes the through portion. the frame portion includes a positioning protrusion projecting from the surface covered with the heater;
10. The damper device according to any one of claims 5 to 9, wherein a tip end surface of the positioning protrusion is provided with a heat-sealing portion for fixing the heater in contact with the tip end face. . A refrigerator comprising the damper device according to any one of claims 1 to 10,
having a cooler and a storage chamber to which cold air generated by the cooler is supplied,
The refrigerator, wherein the damper device is arranged at a cold air intake in the storage compartment.

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