JP2022116913A - Damper device and cold storage chamber - Google Patents

Abstract

To provide a damper device and a cold storage chamber for allowing easy insertion of a connector into a connector insertion port.SOLUTION: A damper device 1 includes a frame 2 having an opening part 210 provided in a frame part 21 perpendicular to a partition wall plate 20, a baffle rotatably supported on the frame 2, a drive mechanism 6, and a case member 3 including a bottom plate part 31 constituting a space 30 between the partition wall plate 20 and itself where the drive mechanism 6 is arranged, the drive mechanism 6 having a geared motor on which a connector terminal having a front end directed to the opposite side to the partition wall plate 20 is held, and the bottom plate part 31 on which a connector insertion port 310 is provided so as to expose the connector terminal to the opposite side to the partition wall plate 20. As a result, easier insertion of a first connector 16 into the connector insertion port 310 is allowed than in the form that the connector insertion port 310 is opened in the side face of the case member 3 at its position far away from the bottom plate part 31 to the partition wall plate 20.SELECTED DRAWING: Figure 1

Description

The present invention relates to damper devices and refrigerators.

A damper device installed in a cold air passage of a refrigerator includes a frame having an opening in a frame perpendicular to a partition plate, a baffle rotatably supported by the frame, and a drive mechanism for driving the baffle. and a case member connected to the frame so as to cover the partition plate from the side opposite to the frame portion, and a driving mechanism is arranged between the partition plate and the bottom plate portion of the case member. With regard to such a damper device, in the drive mechanism, the motor shaft of the motor portion is directly connected to the baffle, and the connector insertion opening for exposing the connector terminals held by the motor portion toward the side opposite to the partition plate is provided in the bottom plate portion. A structure provided in is proposed (see Patent Document 1).

Chinese Utility Model Registration No. 211346007

The damper device described in Patent Document 1 does not disclose a structure or the like for fixing the motor portion between the partition plate of the frame and the bottom plate portion of the case member. As long as it is a structure that does, there are many restrictions on the position of the motor section. As a result, for example, when the motor section is arranged at a position spaced apart from the bottom plate section toward the partition plate, the connector terminals are located deep from the bottom plate section, so the connector needs to be inserted all the way. , there is a problem that it takes a lot of time and effort to insert the connector.

In view of the above problems, an object of the present invention is to provide a damper device and a refrigerator in which a connector can be easily inserted into a connector insertion opening.

In order to solve the above-mentioned problems, a damper device according to the present invention includes a frame having an opening in a frame perpendicular to a partition plate, and a damper rotatably supported by the frame to open and close the opening. a drive mechanism for driving the baffle; a space coupled to the frame so as to cover the partition plate from the side opposite to the frame portion, and the drive mechanism is arranged between the partition plate and the partition plate. and a case member having a bottom plate portion that constitutes a motor portion, which is a drive source of the drive mechanism, is held by the case member with a motor shaft facing the partition plate side, and the bottom plate The portion is provided with a connector insertion opening for exposing the connector terminal held by the motor portion toward the side opposite to the partition plate.

In the present invention, the bottom plate portion of the case member is provided with a connector insertion opening for exposing the connector terminals held by the motor portion toward the side opposite to the partition plate of the frame. power can be supplied to Therefore, it is not necessary to route lead wires between the bottom plate portion and the partition plate. Further, since the motor portion is held by the case member with the motor shaft directed toward the partition plate, the connector terminals held by the motor portion are positioned close to the bottom plate portion. Therefore, it is easy to insert the connector, for example, there is no need to insert the connector deeply.

In the present invention, it is possible to employ a mode in which the connector insertion opening has a structure in which an end portion of the bottom plate portion is notched. According to this aspect, it is easy to insert and remove the connector.

In the present invention, adopting a mode in which the drive mechanism includes the motor section, an output member connected to the baffle, and a gear transmission mechanism that transmits rotation of the motor section to the output member. can be done. According to this aspect, unlike the structure in which the motor shaft of the motor portion is directly connected to the baffle, it is possible to increase the degree of freedom with respect to the position of the motor portion. Therefore, it is possible to increase the degree of freedom in positioning the connector insertion opening, such as providing the connector insertion opening at the end of the bottom plate.

In the present invention, in the drive mechanism, a geared motor in which the motor section and the gear transmission mechanism are integrated is held by the case member. According to this aspect, since it is not necessary to separately provide the motor section and the gear transmission mechanism, it is possible to reduce costs and improve productivity.

In the present invention, a first connector to which one end of a plurality of motor lead wires is connected is inserted into the connector insertion port, and the other end of the plurality of motor lead wires is connected to a second connector. A mode in which it is connected to a connector can be adopted.

In the present invention, a heater fixed to the frame and a plurality of heater lead wires electrically connected to the heater are provided, and the plurality of heater lead wires are opposite to the heater. A mode in which the side end is connected to the second connector can be employed.

In the present invention, each of the plurality of heater lead wires has a first extending portion extending along the surface of the partition plate on the frame portion side, and a first extending portion extending along the outer surface of the case member or the outer surface of the frame. and a third extension part spaced from the case member and extending to the second connector, wherein the first extension part and the second extension part At least one of them may extend within a guide groove provided in the case member or the frame. According to this aspect, even if the third extending portion of the heater lead wire is pulled, the holding force of the heater lead wire by the guide grooves resists the force applied, so that the heater lead wire and the heater are in contact with each other. Do not apply a large force to the connection part of the Therefore, it is possible to prevent the heater lead wire from being detached from the heater.

In the present invention, the outer surface of the case member or the outer surface of the frame includes an engaging portion that engages with a portion between the second extending portion and the third extending portion, and the second extending portion. and the third extension portion may be provided with at least one of clamping portions that clamp and hold the portion between the third extension portion from both sides. According to this aspect, even if the third extending portion of the heater lead wire is pulled, the force of holding the heater lead wire by the engaging portion or the clamping portion resists the applied force. Do not apply a large force to the connection between the lead wire and the heater. Therefore, it is possible to prevent the heater lead wire from being detached from the heater.

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 bottom plate portion of the case member is provided with a connector insertion opening for exposing the connector terminals held by the motor portion toward the side opposite to the partition plate of the frame. power can be supplied to Therefore, it is not necessary to route lead wires between the bottom plate portion and the partition plate. Further, since the motor portion is held by the case member with the motor shaft directed toward the partition plate, the connector terminals held by the motor portion are positioned close to the bottom plate portion. Therefore, it is easy to insert the connector, for example, there is no need to insert the connector deeply.

The perspective view which looked at the damper apparatus to which this invention is applied from the case member side. The perspective view which looked at the damper apparatus shown in FIG. 1 from the frame side. FIG. 2 is an exploded perspective view showing a state in which a baffle and the like are removed from the damper device shown in FIG. 1; FIG. 2 is an exploded perspective view showing the inside of the case member shown in FIG. 1 and the like; FIG. 5 is a perspective view of the driving mechanism and the like shown in FIG. 4; FIG. 2 is an exploded perspective view showing the structure of the partition plate shown in FIG. 1 on the side of the case member, etc.; FIG. 5 is an exploded perspective view of the geared motor shown in FIG. 4; FIG. 2 is a perspective view of an engaging portion and the like for the heater lead wire shown in FIG. 1 ; FIG. 2 is an explanatory diagram of a refrigerator provided with the damper device shown in FIG. 1;

A damper device for a refrigerator to which the present invention is applied will be described with reference to the drawings. In the following description, the rotation center axis of the baffle 4 is L, the direction along the rotation center axis L is the X direction, the direction in which the opening 210 faces is the Z direction, and the direction orthogonal to the X and Z directions is The Y direction will be described. 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 case member 3 side. FIG. 2 is a perspective view of the damper device 1 shown in FIG. 1 as viewed from the frame 2 side. FIG. 3 is an exploded perspective view showing a state in which the baffle 4 and the like are removed from the damper device 1 shown in FIG.

The damper device 1 shown in FIGS. 1, 2, and 3 includes a frame 2 having an opening 210 in a frame 21 orthogonal to a partition plate 20, and a baffle 4 rotatably supported by the frame 2. and a case member 3 coupled to the frame 2 so as to cover the partition plate 20 from the side opposite to the frame portion 21 . Frame 2 and case member 3 are made of resin.

The case member 3 has a bottom plate portion 31 that faces the partition plate 20 on the side opposite to the frame portion 21, and a tubular portion 32 that protrudes from the bottom plate portion 31 toward the partition plate 20. there is The cylindrical portion 32 has side plate portions 321 and 322 facing each other in the Z direction and side plate portions 323 and 324 facing each other in the Y direction. When viewed from the X direction, the bottom plate portion 31 and the cylinder portion 32 are quadrangular with long sides extending in the Y direction and short sides extending in the Z direction. The partition plate 20 and the case member 3 are connected by the hook portion 203 of the partition plate 20 .

The frame 2 has a rectangular tube-shaped trunk portion 22 protruding from the outer edge of the frame portion 21 to the other side Z2 in the Z direction. The partition plate 20 is configured as a portion positioned on one side X1 in the X direction in the trunk portion 22 . The trunk portion 22 has a side plate 25 facing the partition plate 20 on the other side X2 in the X direction. The frame 2 also includes a rectangular tube-shaped seal plate portion 23 that protrudes from the edge of the opening 210 in the frame portion 21 toward the side where the baffle 4 is located.

The baffle 4 is rotatably supported by the frame 2 between the partition plate 20 and the side plate 25 . More specifically, the first bearing portion 11 is formed between the end portion of the baffle 4 on the other side Y2 in the Y direction and the partition plate 20, and the end portion of the baffle 4 on the other side Y2 in the Y direction and the side plate. 25, a second bearing portion 12 is formed. Therefore, the baffle 4 has the first bearing portion 11 and the second bearing portion 1
2 is rotatably supported by the frame 2 with the axis line L as the rotation center axis line.

The first bearing portion 11 includes a protrusion 24 protruding from the partition plate 20 toward the baffle 4 and a tubular portion 441 formed on the baffle 4 so that the protrusion 24 is fitted. The tubular portion 441 is configured to protrude from the end portion of the cylindrical portion 440 of the baffle 4 toward the partition plate 20 . The second bearing portion 12 is composed of a shaft hole 250 formed in the side plate 25 of the frame 2 and a shaft portion 451 protruding from the cylindrical portion 450 of the baffle 4 and fitted into the shaft hole 250 .

When the baffle 4 is driven by the drive mechanism 6, which will be described later with reference to FIG. The opening 210 is opened. The baffle 4 has a resin opening/closing plate 40 larger in size than the opening 210 and a sheet-like elastic member 49 made of foamed polyurethane or the like attached to the surface of the opening/closing plate 40 on the opening 210 side. , and the elastic member 49 contacts the seal plate portion 23 . The columnar portion 440 of the first bearing portion 11 , the columnar portion 450 of the second bearing portion 12 , the cylindrical portion 441 and the shaft portion 451 are formed in the opening/closing plate 40 .

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 210 from the side opposite to the side on which the baffle 4 is arranged with respect to the opening 210 . Cold air may also flow through the opening 210 from the side where the baffle 4 is located relative to the opening 210 .

(Configuration of drive mechanism 6)
FIG. 4 is an exploded perspective view showing the inside of the case member 3 shown in FIG. 1 and the like. FIG. 5 is a perspective view of the drive mechanism 6 and the like shown in FIG. FIG. 6 is an exploded perspective view showing the structure of the partition plate 20 shown in FIG. 1 on the case member 3 side. FIG. 7 is an exploded perspective view of geared motor 60 shown in FIG.

4 and 5, in the case member 3 , the bottom plate portion 31 forms a space 30 between the partition plate 20 and the drive mechanism 6 . In the case member 3, cylindrical portions 331 and 332 for positioning and columnar portions 351 and 352 formed with shaft portions 351a and 352a for positioning are formed on the inner surfaces of the two side plate portions 321 and 322. A cylindrical portion 34 for bearing is formed on the inner surface of the side plate portion 323 . Two engaging plate portions 361 and 362 are formed on the inner surface of the side plate portion 324 . Cylindrical portions 331 and 332 , columnar portions 351 and 352 , and engaging plate portions 361 and 362 are connected to bottom plate portion 31 . A circular concave portion 371 is formed on the inner surface of the bottom plate portion 31, in which the bottom portion of the geared motor 60, which will be described later, is arranged. Further, in the case member 3 , an engaging protrusion 325 is formed on the outer surface of the cylindrical portion 32 .

As shown in FIG. 6, the surface 20a of the partition plate 20 opposite to the frame portion 21 is provided with shaft portions 201 and 202 fitted to the cylindrical portions 331 and 332 of the case member 3, and columnar portions 351 and 352 of the case member 3. The cylindrical portions 205 and 206 into which the shaft portions 351a and 352a of the case member 3 are fitted, and the shaft hole 204 which overlaps with the cylindrical portion 34 for bearing of the case member 3 in the X direction are formed. The partition plate 20 also includes a hook portion 203 that engages with the protrusion 325 of the case member 3, an annular portion 207, a first stopper 208 that defines the fully open position, and a second stopper 209 that defines the fully closed position. and are formed.

As shown below with reference to FIGS. 4, 5 and 7, the drive mechanism 6 includes a motor section 61 as a drive source, an output member 69 connected to the baffle 4, and the rotation of the motor section 61. and a gear transmission mechanism 65 that transmits to the member 69 . In the present embodiment, in the drive mechanism 6, the geared motor 60, in which the motor portion 61 and the gear transmission mechanism 65 are integrated, is held by the case member 3 with the motor shaft 604 facing the partition plate 20 side. At 60 , a connector terminal 68 is held by the motor portion 61 with its tip facing away from the partition plate 20 .

More specifically, the geared motor 60 includes a bottomed cylindrical metal motor case 602 , an end plate 601 closing an open end of the motor case 602 , and a cylindrical stator disposed inside the motor case 602 . 603 , a rotor (not shown) located inside the stator 603 , and a bottom plate 605 located between the end plate 601 and the stator 603 . A motor unit 61 is configured by a stepping motor. A gear transmission mechanism 65 is formed between the base plate 605 and the end plate 601 , and the gear transmission mechanism 65 is integrated with the motor section 61 .

In the rotor, a pinion 64 is fixed to a motor shaft 604 facing the partition plate 20 side. The gear transmission mechanism 65 includes a first compound gear 651 that meshes with the pinion 64, a second compound gear 652 that meshes with the first compound gear 651, a third compound gear 653 that meshes with the second compound gear 652, and a third compound gear 653. and an output wheel 655 having a gear 656 meshing with the fourth compound gear 654 . In the output wheel 655 , a gear 66 is connected to a shaft portion 657 protruding from the end plate 601 . Therefore, the rotation of the rotor is decelerated by the gear transmission mechanism 65 and transmitted to the gear 66 .

Here, a terminal block 607 is formed integrally with the insulator 608 of the stator 603 radially outward, and the terminal block 607 protrudes radially outward through the notch 602 a of the motor case 602 . A plurality of connector terminals 68 are held on the terminal block 607 with their ends facing away from the partition plate 20 . It is connected. Engagement claws 609 are formed on both sides of the terminal block 607 in the circumferential direction, and the engagement claws 609 hold a cover 67 integrally formed with a connector housing 670 that covers the connector terminals 68 from the radial outside.

When the geared motor 60 is arranged inside the case member 3, the engaging plate portions 361 and 362 of the case member 3 hold the terminal block 607 and the engaging claws 609 from both sides in the circumferential direction. As a result, the motor portion 61 of the geared motor 60 is held by the bottom plate portion 31 of the case member 3 . At that time, the shaft portions 351a and 352a of the columnar portions 351 and 352 of the case member 3 are fitted into the holes 601a and 601b formed in the end plate 601 .

The output member 69 includes a first shaft portion 691 fitted in the bearing cylindrical portion 34 of the case member 3 , a sector gear 690 projecting radially from the first shaft portion 691 , and a first shaft portion for the sector gear 690 . The output member 69 is rotatably supported by the bottom plate portion 31 via the cylindrical portion 34 of the case member 3 .

Therefore, the entire driving mechanism 6 can be assembled to the case member 3 . When the partition plate 20 is covered with the case member 3 after the drive mechanism 6 is completely assembled to the case member 3, the protrusion 325 of the case member 3 and the hook portion 203 of the partition plate 20 are engaged with each other. and the partition plate 20 are combined. At this time, the shaft portions 201 and 201 of the partition plate 20 are fitted into the cylindrical portions 331 and 332 of the case member 3 , and the shaft portions 351 a and 352 a of the case member 3 are fitted inside the cylindrical portions 205 and 206 of the partition plate 20 . A shaft portion 657 of the output wheel 655 is located inside the annular portion 207 of the partition plate 20 . Also, the second shaft portion 692 of the output member 69 passes through the shaft hole 204 of the partition plate 20 . Therefore, if the baffle 4 is attached to the frame 2, the second shaft portion 692 of the output member 69 fits into the connecting hole formed in the end surface of the cylindrical portion 440 of the baffle 4, thereby connecting the output member 69 and the baffle 4. can do.

Thus, in the damper device 1 of this embodiment, the geared motor 60 is held by the case member 3 coupled to the frame 2 so as to cover the partition plate 20 of the frame 2 from the side opposite to the frame portion 21 . Therefore, since the frame 2 does not need to hold the geared motor 60, the structure of the frame 2 can be simplified. Further, since the geared motor 60 is used, the case member 3 does not need to have a structure in which the plurality of gears of the gear transmission mechanism 65 can be individually rotated. Therefore, the structure of the case member 3 can also be simplified.

Moreover, in this embodiment, the output member 69 is rotatably supported by the case member 3 . Further, since the gear transmission mechanism 65 is entirely provided on the case member 3 side, there is an advantage that the gear of the gear transmission mechanism 65 and the sector gear 690 of the output member 69 can be meshed with high accuracy.

(Configuration of Connector Insertion Port 310)
The bottom plate portion 31 of the case member 3 is provided with a connector insertion opening 310 through which the connector terminals 68 described with reference to FIG. In this embodiment, the connector insertion opening 310 has a structure in which the end portion of the bottom plate portion 31 is notched.

The first connector 16 to which one ends 851 of the plurality of motor lead wires 85 are connected is inserted into the connector insertion port 310 , and the plurality of motor lead wires 85 are electrically connected to the connector terminals 68 . It is connected to the. The other ends 852 of the plurality of motor lead wires 85 are connected to the second connector 17 shown in FIG. Therefore, by connecting the second connector 17 to a host control device, the drive signal can be supplied to the motor section 61 via the second connector 17 , the motor lead wire 85 and the connector terminal 68 . The motor lead wire 85 has a structure in which a conductive wire is covered with an insulating layer.

As described above, in the damper device 1 of this embodiment, the connector terminal 68 for supplying power to the motor portion 61 is inserted into the bottom plate portion 31 of the case member 3 so as to be exposed toward the side opposite to the partition plate 20 of the frame 2 . A mouth 310 is provided. Therefore, it is easier to insert the first connector 16 into the connector insertion opening 310 than in the aspect in which the connector insertion opening 310 opens at a position far away from the bottom plate portion 31 toward the partition plate 20 on the side surface of the case member 3. is.

Further, the connector terminal 68 is held by the geared motor 60 with its tip facing away from the partition plate 20 . Therefore, since it is not necessary to connect the motor portion 61 and the connector terminal 68 with a lead wire, it is not necessary to route the lead wire. Therefore, the productivity of the damper device 1 can be enhanced.

Further, unlike the structure in which the motor shaft of the motor portion 61 is directly connected to the baffle, in this embodiment, the rotation of the motor portion 61 is transmitted to the baffle 4 via the gear transmission mechanism 65 and the output member 69, so that the motor portion The degree of freedom in designing the position of 61 can be increased. Therefore, the position of the connector terminal 68 held by the motor portion 61 can also be increased in design flexibility. Therefore, it is possible to increase the degree of freedom in designing the position where the connector insertion opening 310 is arranged, such as providing the connector insertion opening 310 at the end of the bottom plate portion 31 .

(Structure of heater 9, etc.)
FIG. 8 is a perspective view of the engaging portion 76 and the like for the heater lead wire 80 shown in FIG. As shown in FIG. 4 , the heater 9 is attached to the surface of the frame portion 21 of the frame 2 on the side where the baffle 4 is located so as to surround the opening 210 . The heater 9 has a sheet shape formed between two sheets 96 and 97 . The heater 9 is fixed to the frame portion 21 while being positioned by the holes 961 and 971 of the sheets 96 and 97 and the projections 215 of the frame portion 21 . Therefore, it is possible to prevent the baffle 4 and the frame portion 21 from sticking to each other due to freezing. Power feeding portions 91 and 92 are formed at both ends of the heater 9, and the power feeding portions 91 and 92 have terminal portions 910 and 920 projecting from the heater 9 side to the other side Z2 in the Z direction. As shown in FIG. 2, a plurality of heater lead wires 80 are connected to the power supply units 91 and 92 . The heater lead wire 80 has a structure in which a conductive wire is covered with an insulating layer.

In this embodiment, the number of lead wires 80 for heater is two, and the plurality of lead wires 80 for heater consist of a first lead wire 81 and a second lead wire 82 . Each of the first lead wire 81 and the second lead wire 82 has one end 811, 821 connected to the feeder 91, 92, and the other end 812, 822 connected to the second connector 17 shown in FIG. It is Therefore, by connecting the second connector 17 to a host controller, power can be supplied to the heater 9 via the second connector 17 and the heater lead wire 80 .

In this embodiment, the first lead wire 81 and the second lead wire each extend along the surface of the partition plate 20 on the side of the frame portion 21 at a position spaced apart from the rotation center axis L on one side Y1 in the Y direction. First extending portions 816, 826, second extending portions 817, 827 extending along the outer surface of the case member 3 or the frame 2, and a third extending portion 818 extending away from the case member 3. , 828 . Here, the first extending portions 816 and 826 and the second extending portions 817 and 827 extend within the guide groove 7 provided in the case member 3 or the frame 2 . In this embodiment, the guide groove 7 includes a first groove 71 in which the first lead wire 81 extends and a second groove 72 in which the second lead wire 82 extends.

As shown in FIGS. 2 and 8, the first groove 71 and the second groove 72 each extend from the boundary portion with the frame portion 21 to the boundary portion with the side plate portion 321 on the surface 20b of the partition plate 20 on the frame portion 21 side. It includes extending first portions 711 and 721 and second portions 712 and 722 obliquely extending from the boundary portion with the partition wall plate 20 to the boundary portion with the bottom plate portion 31 in the side plate portion 321 of the case member 3. there is In the first groove 71 , the first portion 711 and the second portion 712 are connected at the corner formed by the surface of the partition plate 20 on the frame portion 21 side and the side plate portion 321 . The portion 721 and the second portion 722 are connected at a corner formed by the surface of the partition plate 20 on the side of the frame portion 21 and the side plate portion 321 .

In the first groove 71, the first extension portion 816 of the first lead wire 81 extends inside the first portion 711, and the second extension portion 817 of the first lead wire 81 extends inside the second portion 712. extended. In the second groove 72, the first extension 826 of the second lead wire 82 extends inside the first portion 721, and the second extension 827 of the second lead wire 82 extends inside the second portion 722. extended. Here, the second portion 712 of the first groove 71 and the second portion 722 of the second groove 72 are connected near the end portion of the side plate portion 321 on the bottom plate portion 31 side, and the first lead wire 81 and the second lead wire 81 are connected to each other. In the lead wire 82, the fourth extensions 815, 825 and the third extensions 818, 828 extending between the second extensions 817, 827 and the third extensions 818, 828 are 2 The books are stretched out together.

As described below with reference to FIG. 8, the case member 3 and the frame 2 have engagement portions 76 that engage the fourth extensions 815 and 825 of the first lead wire 81 and the second lead wire 72 . is configured. Further, the case member 3 and the frame 2 are provided with clamping portions 77 that clamp and hold the fourth extending portions 815 and 825 of the first lead wire 81 and the second lead wire 72 from both sides.

In this embodiment, the holding portion 77 includes an end portion 315 of the bottom plate portion 31 exposed from the cutout portion of the side plate portion 321, and a projecting portion 326 projecting from the side plate portion 321 so as to overlap the end portion 315, The fourth extending portions 815 , 825 of the first lead wire 81 and the second lead wire 82 are arranged between the second side plate portion 321 and the end portion 315 of the bottom plate portion 31 and between the projecting portion 326 of the second side plate portion 321 . It is held by the holding portion 77 by being held between the end portion 315 of the bottom plate portion 31 . In this embodiment, the protrusions 326 are formed at two locations.

Further, the engaging portion 76 is configured by providing a gap between the bottom plate portion 31 and the side plate portion 324 so as to form a protruding portion 317 facing the side plate portion 324 with the gap between the bottom plate portion 31 and the side plate portion 324 . ing. In the engagement portion 76, the portions of the fourth extension portions 815 and 825 of the first lead wire 81 and the second lead wire 82 that are clamped by the clamp portion 327 and the third extension portions 818 and 828 are connected. The projecting portion 317 is engaged with the fourth extending portions 815 and 825 by letting the intermediate portion pass between the end portion of the side plate portion 324 and the projecting portion 317 .

As described above, in the damper device 1 of the present embodiment, the first extension portions 816, 826 and the second extension portions 817, 827 of the first lead wire 81 and the second lead wire 82 included in the heater lead wire 80 are arranged in the case. It extends within a first groove 71 and a second groove 72 provided in the member 3 or frame 2 . Therefore, even if the third portions 818 and 828 of the first lead wire 81 and the second lead wire 82 are pulled, the holding force of the first groove 71 and the second groove 72 resists the applied force. A large force is not applied to the connecting portions of the first lead wire 81 and the second lead wire 82 to the heater 9 . Therefore, it is possible to prevent the first lead wire 81 and the second lead wire 82 from detaching from the heater 9 .

Further, the fourth extending portions 815 and 825 of the first lead wire 81 and the second lead wire 82 are held by the engaging portion 76 and the holding portion 77 . Therefore, even if the third portions 818 and 828 of the first lead wire 81 and the second lead wire 82 are pulled, the holding force of the engaging portion 76 and the clamping portion 77 resists the applied force. A large force is not applied to the connecting portions of the first lead wire 81 and the second lead wire 82 to the heater 9 . Therefore, it is possible to prevent the first lead wire 81 and the second lead wire 82 from detaching from the heater 9 . Also, the engaging portion 76 and the holding portion 77 collectively hold the first lead wire 81 and the second lead wire 82 . Therefore, the first lead wire 81 and the second lead wire 82 can be routed efficiently, and the holding force of the engaging portion 76 and the holding portion 77 is large.

(Refrigerator configuration)
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 and the storage chamber 111 communicate with each other. 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 .

(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 present invention may be applied when the partition plate 20 is separate from the frame 2 . 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.

REFERENCE SIGNS LIST 1 damper device 2 frame 3 case member 4 baffle 6 drive mechanism 7 guide groove 9 heater 11 first bearing 12 second bearing 16 first Connector 17 Second connector 20 Partition plate 21 Frame 22 Body 23 Seal plate 24 Protrusion 25 Side plate 30 Space 31 Bottom plate 32 Cylinder Part 40... Opening/closing plate 49... Elastic member 60... Geared motor 61... Motor part 65... Gear transmission mechanism 68... Connector terminal 69... Output member 71... First groove 72... Second groove DESCRIPTION OF SYMBOLS 76... Engagement part 77... Clamping part 80... Lead wire for heater 81... First lead wire 82... Second lead wire 85... Lead wire for motor 91, 92... Power supply part 100... Refrigerator, DESCRIPTION OF SYMBOLS 110... Refrigerator body, 111... Storage room, 112... Cool air duct, 113... Cool air intake, 114... Cooling machine, 115... Fan, 120... Control device, 310... Connector insertion opening, 317, 326... Protruding part, 321, DESCRIPTION OF SYMBOLS 322, 323, 324... Side plate part 361, 362... Engaging plate part 601... End plate 602... Motor case 602a... Notch 603... Stator 604... Motor shaft 605... Base plate 606... Stator coil, 607... Terminal block 608... Insulator 655... Output wheel 670... Connector housing 690... Sectoral gear 691... First shaft portion 692... Second shaft portion 711, 721... First portion 712, 722... Second portion 910, 920... Terminal portion L... Rotation center axis

Claims (9)

a frame having an opening in a frame perpendicular to the partition plate;
a baffle rotatably supported by the frame for opening and closing the opening;
a drive mechanism for driving the baffle;
a case member including a bottom plate portion that is coupled to the frame so as to cover the partition plate from the side opposite to the frame portion, and that defines a space between the partition plate and the drive mechanism for arranging the drive mechanism;
has
a motor portion, which is a drive source of the drive mechanism, is held by the case member with the motor shaft directed toward the partition plate;
A damper device according to claim 1, wherein the bottom plate portion is provided with a connector insertion opening for exposing a connector terminal held by the motor portion toward a side opposite to the partition plate. In the damper device according to claim 1,
A damper device according to claim 1, wherein the connector insertion port has a structure in which an end portion of the bottom plate portion is cut. In the damper device according to claim 1 or 2,
A damper device, wherein the drive mechanism includes the motor section, an output member connected to the baffle, and a gear transmission mechanism that transmits rotation of the motor section to the output member. In the damper device according to claim 3,
A damper device, wherein in the drive mechanism, a geared motor in which the motor portion and the gear transmission mechanism are integrated is held by the case member. In the damper device according to any one of claims 1 to 4,
A first connector to which one end of a plurality of motor lead wires is connected is inserted into the connector insertion port,
A damper device, wherein the other ends of the plurality of motor lead wires are connected to a second connector. In the damper device according to claim 5,
a heater fixed to the frame;
a plurality of heater lead wires electrically connected to the heater;
has
A damper device, wherein ends of the plurality of heater lead wires opposite to the heater are connected to the second connector. In the damper device according to claim 6,
Each of the plurality of heater lead wires extends along a first extending portion extending along the surface of the partition plate on the frame portion side and along the outer surface of the case member or the outer surface of the frame. a second extension and a third extension spaced apart from the case member and extending to the second connector;
A damper device, wherein at least one of the first extension portion and the second extension portion extends within a guide groove provided in the case member or the frame. In the damper device according to claim 7,
The outer surface of the case member or the outer surface of the frame includes an engaging portion that engages a portion between the second extending portion and the third extending portion, and an engaging portion that engages a portion between the second extending portion and the third extending portion. A damper device, comprising at least one of clamping portions that clamp and hold a portion between the extending portion and the extending portion from both sides. A refrigerator equipped with the damper device defined in any one of claims 1 to 8,
a cooler;
a storage room to which cool air generated by the cooler is supplied;
has
The refrigerator, wherein the damper device is arranged at a cold air intake in the storage compartment.

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