Air door device and refrigerator

Abstract

The present invention provides a damper device and a refrigerator that allow easy insertion of a connector into a connector insertion port. The damper device (1) comprises: a frame (2) having an opening (210) provided in a frame portion (21) orthogonal to a partition plate (20); a baffle plate rotatably supported on the frame; a drive mechanism (6); and a housing member (3) having a bottom plate portion (31) that forms a space (30) for arranging the drive mechanism (6) between the bottom plate and the partition plate. In the drive mechanism (6), a connector terminal with its front end facing the opposite side of the partition plate is held on a gear transmission motor, and a connector insertion port (310) is provided on the bottom plate portion (31) so that the connector terminal is exposed toward the opposite side of the partition plate. Therefore, compared with a method in which the connector insertion port is opened at a position on the side of the housing member (3) that is away from the bottom plate portion (31) and faces the partition plate, it is easier to insert a first connector (16) into the connector insertion port.

Description

Technical Field

[0001] The invention relates to a damper device and a refrigerator. Background Art

[0002] A damper device disposed in a cold air passage of a refrigerator or the like comprises: a frame having an opening provided in a frame portion orthogonal to a partition plate; a baffle supported rotatably on the frame; a driving mechanism for driving the baffle; and a shell member coupled to the frame in a manner covering the partition plate from the side opposite to the frame, wherein the driving mechanism is disposed between the partition plate and the bottom plate portion of the shell member. The damper device has been proposed to have the following structure: in the driving mechanism, a motor shaft of a motor portion is directly connected to the baffle plate, and a connector insertion port is provided on the bottom plate portion to expose a connector terminal held in the motor portion toward the side opposite to the partition plate (see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: China Utility Model Authorization Gazette No. 211346007 Summary of the invention

[0006] Technical problem to be solved by the invention

[0007] In the damper device described in Patent Document 1, the fixing structure of the motor unit between the bulkhead plate of the frame and the bottom plate portion of the housing member is not disclosed. For example, if the motor shaft of the motor unit is directly connected to the baffle plate, there are many restrictions on the position of the motor unit. As a result, there are problems such as, for example, when the motor unit is arranged at a position away from the bottom plate portion toward the bulkhead plate, since the connector terminal is at a position deep from the bottom plate portion, it is necessary to insert the connector deep, etc., and the insertion of the connector takes a lot of time and effort.

[0008] In view of the above problems, the technical 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 port.

[0009] Technical solutions adopted to solve technical problems

[0010] In order to solve the above-mentioned technical problems, the present invention provides a damper device, characterized in that it comprises: a frame, wherein an opening portion is provided in a frame portion orthogonal to a partition plate; a baffle, wherein the baffle is supported by the frame so as to be rotatable and is used to open and close the opening portion; a driving mechanism, wherein the driving mechanism drives the baffle; and a shell component, wherein the shell component is combined with the frame in a manner of covering the partition plate from the side opposite to the frame portion, and has a bottom plate portion that forms a space for arranging the driving mechanism between the shell component and the partition plate, wherein a motor portion serving as a driving source of the driving mechanism is held on the shell component in a state in which the motor shaft is directed toward the partition plate side, and a connector insertion port is provided on the bottom plate portion, and the connector insertion port exposes the connector terminal held on the motor portion toward the side opposite to the partition plate.

[0011] In the present invention, since a connector insertion port is provided on the bottom plate portion of the housing component, the connector insertion port exposes the connector terminal held in the motor portion toward the side opposite to the partition plate of the frame, so that power can be supplied to the motor portion via the connector. Therefore, it is not necessary to pass a lead wire between the bottom plate portion and the partition plate. In addition, since the motor portion is held in the housing component with the motor shaft facing the partition plate side, the connector terminal held in the motor portion is located close to the bottom plate portion. Therefore, it is not necessary to insert the connector deep into the housing component, and the connector can be easily inserted.

[0012] In the present invention, the connector insertion port may be formed by cutting off an end portion of the bottom plate portion. According to this embodiment, the connector can be easily inserted and removed.

[0013] In the present invention, the following mode can be adopted: the driving mechanism includes: the motor unit; an output member connected to the baffle; and a gear transmission mechanism that transmits the rotation of the motor unit to the output member. According to this mode, unlike a structure in which the motor shaft of the motor unit is directly connected to the baffle, the degree of freedom of the position relative to the motor unit can be increased. Therefore, the degree of freedom of the position of the connector insertion port can be increased, such as by setting the connector insertion port at the end of the bottom plate portion.

[0014] In the present invention, the following method can be adopted: in the driving mechanism, the gear transmission motor in which the motor part and the gear transmission mechanism are integrated is held in the housing member. According to this method, since the motor part and the gear transmission mechanism do not need to be separately provided, cost reduction and productivity improvement can be achieved.

[0015] In the present invention, a first connector connected to one end of a plurality of motor lead wires may be inserted into the connector insertion port, and the other end of the plurality of motor lead wires may be connected to a second connector.

[0016] In the present invention, the following embodiment may be adopted: a heater fixed to the frame portion and a plurality of heater lead wires electrically connected to the heater, wherein ends of the plurality of heater lead wires on the opposite side to the heater are connected to the second connector.

[0017] In the present invention, the following method can be adopted: the plurality of heater leads respectively include: a first extension portion extending along the surface of the frame side of the partition plate; a second extension portion extending along the outer surface of the shell component or the outer surface of the frame; and a third extension portion extending away from the shell component and extending to the second connector, and at least one of the first extension portion and the second extension portion extends in a guide groove provided on the shell component or the frame. According to this method, even if the third extension portion of the heater lead is pulled, the holding force of the guide groove on the heater lead will resist the force, so that a large force will not be applied to the connection portion between the heater lead and the heater. Therefore, it is possible to prevent the heater lead from falling off the heater.

[0018] In the present invention, the following method can be adopted: at least one of an engaging portion engaging with the portion between the second extension portion and the third extension portion and a clamping portion clamping and holding the portion between the second extension portion and the third extension portion from both sides is provided on the outer surface of the housing member or the outer surface of the frame. According to this method, even if the third extension portion of the heater lead is pulled, the force of the engaging portion or the clamping portion holding the heater lead will resist the force, so that a large force will not be applied to the connection portion between the heater lead and the heater. Therefore, it is possible to prevent the heater lead from falling off from the heater.

[0019] The damper device of the present invention can be used in a refrigerator including a cooler and a storage chamber to which cold air generated by the cooler is supplied, and the damper device is arranged at a cold air inlet in the storage chamber.

[0020] Effects of the Invention

[0021] In the present invention, since the bottom plate portion of the housing component is provided with a connector insertion port that exposes the connector terminals held in the motor portion toward the side opposite to the partition plate of the frame, power can be supplied to the motor portion via the connector. Therefore, it is not necessary to pass a lead wire between the bottom plate portion and the partition plate. In addition, since the motor portion is held in the housing component with the motor shaft facing the partition plate side, the connector terminals held in the motor portion are located close to the bottom plate portion. Therefore, it is not necessary to insert the connector deep into the housing component, and the connector can be easily inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a perspective view of a damper device to which the present invention is applied, viewed from the case member side.

[0023] Figure 2 Viewed from the frame side Figure 1 A perspective view of the damper device shown.

[0024] Figure 3 It means from Figure 1 The damper device shown is an exploded perspective view with the baffle plate and the like removed.

[0025] Figure 4 Yes means Figure 1 An exploded perspective view of the interior of the housing components shown.

[0026] Figure 5 yes Figure 4 A stereoscopic view of the drive mechanism etc. shown.

[0027] Figure 6 Yes means Figure 1 An exploded perspective view of the structure of the shell member side of the partition wall plate shown.

[0028] Figure 7 yes Figure 4 An exploded perspective view of the geared motor shown.

[0029] Figure 8 is relative to Figure 1 A perspective view of the engaging portion of the heater lead wire, etc. is shown.

[0030] Fig. 9 Yes Figure 1 An illustration of a refrigerator with a damper device is shown.

[0031] Description of Reference Numerals

[0032] 1… damper device; 2… frame; 3… housing member; 4… baffle; 6… driving mechanism; 7… guide groove; 9… heater; 11… first bearing portion; 12… second bearing portion; 16… first connector; 17… second connector; 20… partition plate; 21… frame portion; 22… main body portion; 23… sealing plate portion; 24… protrusion; 25… side plate; 30… space; 31… bottom plate portion; 32… cylinder portion; 40… opening and closing plate; 49… elastic member; 60… gear transmission motor; 61… motor portion; 65… gear transmission mechanism; 68… connector terminal; 69… output member; 71… first groove; 72… second groove; 76… engaging portion; 77… clamping portion; 80… heater lead wire; 81… first lead wire; 82… second lead wire; 85… motor lead wire; 91, 92… power supply portion; 100… refrigerator; 1 10…refrigerator body; 111…storage chamber; 112…cool air duct; 113…cool air inlet; 114…cooler; 115…fan; 120…control device; 310…connector insertion port; 317, 326…protrusions; 321, 322, 323, 324…side plate; 361, 362…engaging plate; 601…end plate; 602…motor housing; 602a…notch; 603…stator; 604…motor shaft; 605…retaining plate; 606…stator coil; 607…terminal block; 608…insulator; 655…output wheel; 670…connector housing; 690…sector 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. DETAILED DESCRIPTION

[0033] The damper device for a refrigerator to which the present invention is applied is described with reference to the accompanying drawings. In the following description, the rotation center axis of the baffle 4 is set as L, the direction along the rotation center axis L is set as the X direction, the direction facing the opening 210 is set as the Z direction, and the direction orthogonal to the X direction and the Z direction is set as the Y direction. In addition, one side in the X direction is set as X1, the other side in the X direction is set as X2, one side in the Y direction is set as Y1, the other side in the Y direction is set as Y2, one side in the Z direction is set as Z1, and the other side in the Z direction is set as Z2.

[0034] (Overall structure)

[0035] Figure 1 This is a perspective view of the damper device 1 to which the present invention is applied, as viewed from the case member 3 side. Figure 2 Viewed from frame 2 Figure 1 A perspective view of the damper device 1 is shown. Figure 3 It means from Figure 1 The damper device 1 shown is an exploded perspective view in a state where the baffle plate 4 and the like are removed.

[0036] Figure 1 , Figure 2 and Figure 3 The damper device 1 shown has: a frame 2 having an opening 210 provided in a frame portion 21 orthogonal to a bulkhead plate 20; a baffle 4 rotatably supported on the frame 2; and a housing member 3 coupled to the frame 2 in a manner covering the bulkhead plate 20 from the side opposite to the frame portion 21. The frame 2 and the housing member 3 are made of resin.

[0037] The shell member 3 has: a bottom plate portion 31 opposite to the partition plate 20 on the side opposite to the frame portion 21; and a square tube-shaped cylinder portion 32 protruding from the bottom plate portion 31 to the partition plate 20 side. The cylinder portion 32 has: side plates 321 and 322 opposite to each other in the Z direction; and side plates 323 and 324 opposite to each other in the Y direction. When viewed from the X direction, the bottom plate portion 31 and the cylinder portion 32 are quadrilaterals whose long sides extend in the Y direction and whose short sides extend in the Z direction. The partition plate 20 and the shell member 3 are connected by the hook portion 203 of the partition plate 20.

[0038] The frame 2 has a main body 22 in the shape of a square tube that protrudes from the outer edge of the frame 21 toward the other side Z2 in the Z direction. The partition plate 20 is configured as a portion of the main body 22 located on one side X1 in the X direction. The main body 22 has a side plate 25 that is opposite to the partition plate 20 on the other side X2 in the X direction. In addition, the frame 2 has a sealing plate 23 in the shape of a square tube that protrudes from the edge of the opening 210 at the frame 21 toward the side where the baffle 4 is located.

[0039] The baffle plate 4 is supported on the frame 2 in a manner that allows it to rotate between the partition plate 20 and the side plate 25. More specifically, a first bearing portion 11 is formed between the end portion of the baffle plate 4 on the other side Y2 in the Y direction and the partition plate 20, and a second bearing portion 12 is formed between the end portion of the baffle plate 4 on the other side Y2 in the Y direction and the side plate 25. Therefore, the baffle plate 4 is supported on the frame 2 in a manner that allows it to rotate, with the axis connecting the first bearing portion 11 and the second bearing portion 12 as the rotation center axis L.

[0040] The first bearing portion 11 includes: a protrusion 24 protruding from the partition plate 20 toward the baffle plate 4; and a cylindrical portion 441 formed on the baffle plate 4 in a manner such that the protrusion 24 is embedded. The cylindrical portion 441 is configured to protrude from the end of the cylindrical portion 440 of the baffle plate 4 toward the partition plate 20. The second bearing portion 12 is configured by an axial 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 plate 4 and embedded in the axial hole 250.

[0041] Baffle 4 is referred to Figure 4When the drive mechanism 6 described later is driven, the opening 210 is set to a closed state by contacting with the sealing plate portion 23, and the opening 210 is set to an open state by moving away from the sealing plate portion 23. The baffle 4 includes: a resin opening and closing plate 40 having a size larger than the opening 210; and a sheet-like elastic member 49 made of polyurethane foam or the like attached to the surface of the opening and closing plate 40 on the side of the opening 210, and the elastic member 49 contacts the sealing plate portion 23. The cylindrical portion 440 of the first bearing portion 11, the cylindrical portion 450 of the second bearing portion 12, the cylindrical portion 441, and the shaft portion 451 are formed on the opening and closing plate 40.

[0042] The damper device 1 is disposed, for example, inside an air duct constituting a cold air passage. Cold air flows through the opening 210 from the side opposite to the side where the baffle 4 is disposed with respect to the opening 210. In addition, cold air sometimes flows through the opening 210 from the side where the baffle 4 is disposed with respect to the opening 210.

[0043] (Structure of the driving mechanism 6)

[0044] Figure 4 Yes means Figure 1 An exploded perspective view of the interior of the housing component 3 is shown. Figure 5 yes Figure 4 A perspective view of the drive mechanism 6 etc. shown. Figure 6 Yes means Figure 1 The exploded perspective view of the structure of the case member 3 side of the partition wall plate 20 shown. Figure 7 yes Figure 4 An exploded perspective view of the geared motor 60 is shown.

[0045] exist Figure 4 and Figure 5 In the case member 3, the bottom plate 31 forms a space 30 for arranging the drive mechanism 6 between the bottom plate 31 and the partition plate 20. In the case member 3, the inner surfaces of the two side plates 321 and 322 are formed with: cylindrical portions 331 and 332 for positioning; and columnar portions 351 and 352 formed with shaft portions 351a and 352a for positioning, and the inner surface of the side plate 323 is formed with a cylindrical portion 34 for bearings. Two engaging plate portions 361 and 362 are formed on the inner surface of the side plate 324. The cylindrical portions 331 and 332, the columnar portions 351 and 352, and the engaging plate portions 361 and 362 are connected to the bottom plate 31. A circular recess 371 for arranging the bottom of the gear transmission motor 60 described later is formed on the inner surface of the bottom plate 31. In addition, in the case member 3, an engaging protrusion 325 is formed on the outer surface of the cylinder 32.

[0046] like Figure 6As shown, the surface 20a of the partition plate 20 opposite to the frame portion 21 is formed with: shaft portions 201, 202 embedded in the cylindrical portions 331, 332 of the housing member 3; cylindrical portions 205, 206 into which the shaft portions 351a, 352a of the columnar portions 351, 352 of the housing member 3 are embedded; and an axial hole 204 overlapping with the cylindrical portion 34 for the bearing of the housing member 3 in the X direction. In addition, the partition plate 20 is formed with: a hook portion 203 engaged with the protrusion 325 of the housing member 3; an annular portion 207; a first stopper 208 for limiting the fully open position; and a second stopper 209 for limiting the fully closed position.

[0047] Reference Figure 4 , Figure 5 and Figure 7 As shown below, the drive mechanism 6 includes: a motor unit 61 as a drive source; an output member 69 connected to the baffle plate 4; and a gear transmission mechanism 65 that transmits the rotation of the motor unit 61 to the output member 69. In the present embodiment, in the drive mechanism 6, the gear transmission motor 60 in which the motor unit 61 and the gear transmission mechanism 65 are integrated is held on the housing member 3 with the motor shaft 604 facing the bulkhead plate 20 side, and in the gear transmission motor 60, the connector terminal 68 is held on the motor unit 61 with the front end facing the opposite side of the bulkhead plate 20.

[0048] More specifically, the gear transmission motor 60 includes: a metal motor housing 602 having a bottomed cylindrical shape; an end plate 601 that closes the open end of the motor housing 602; a cylindrical stator 603 disposed inside the motor housing 602; a rotor (not shown) disposed inside the stator 603; and a retaining plate 605 disposed between the end plate 601 and the stator 603. The motor housing 602, the rotor, and the stator 603 constitute a motor unit 61 including a stepping motor. A gear transmission mechanism 65 is formed between the retaining plate 605 and the end plate 601, and the gear transmission mechanism 65 is integrated with the motor unit 61.

[0049] In the rotor, a pinion 64 is fixed to the motor shaft 604 facing the partition plate 20 side. The gear transmission mechanism 65 includes: a first composite gear 651 meshing with the pinion 64; a second composite gear 652 meshing with the first composite gear 651; a third composite gear 653 meshing with the second composite gear 652; a fourth composite gear 654 meshing with the third composite gear 653; and an output wheel 655 having a gear 656 meshing with the fourth composite 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.

[0050] Here, a terminal block 607 is integrally formed on the radially outer side of the insulator 608 of the stator 603, and the terminal block 607 protrudes radially outward through the notch 602a of the motor housing 602. A plurality of connector terminals 68 are held on the terminal block 607 with their front ends facing the side opposite to the bulkhead plate 20, and the plurality of connector terminals 68 are electrically connected to the coil wires constituting the stator coil 606. Engagement claws 609 are formed on both sides of the terminal block 607 in the circumferential direction, and the engagement claws 609 hold the cover 67, which is integrally formed with a connector housing 670 that covers the connector terminals 68 from the radially outer side.

[0051] When the geared motor 60 is arranged inside the housing member 3, the engaging plate portions 361 and 362 of the housing 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 housing member 3. At this time, the holes 601a and 601b formed in the end plate 601 are fitted into the shaft portions 351a and 352a of the columnar portions 351 and 352 of the housing member 3.

[0052] The output component 69 includes: a first shaft portion 691 embedded in the cylindrical portion 34 of the shell member 3 for bearings; a sector gear 690 extending radially from the first shaft portion 691; and a second shaft portion 692 protruding to the opposite side of the first shaft portion 691 relative to the sector gear 690. The output component 69 is supported by the bottom plate portion 31 in a rotatable manner via the cylindrical portion 34 of the shell member 3.

[0053] Therefore, the drive mechanism 6 can be completely assembled on the shell member 3. In addition, after the drive mechanism 6 is completely assembled on the shell member 3, when the shell member 3 is covered on the partition plate 20, the protrusion 325 of the shell member 3 and the hook portion 203 of the partition plate 20 are engaged, and the shell member 3 and the partition plate 20 are combined. At this time, the shaft portions 201 and 202 of the partition plate 20 are embedded in the cylindrical portions 331 and 332 of the shell member 3, and the shaft portions 351a and 352a of the shell member 3 are embedded in the inner side of the cylindrical portions 205 and 206 of the partition plate 20. In addition, the shaft portion 657 of the output wheel 655 is located on the inner side of the annular portion 207 of the partition plate 20. In addition, the second shaft portion 692 of the output member 69 passes through the shaft hole 204 of the partition plate 20. Therefore, when the baffle 4 is mounted on the frame 2 , the second shaft portion 692 of the output member 69 is fitted into the connection hole formed on the end surface of the cylindrical portion 440 of the baffle 4 , so that the output member 69 and the baffle 4 can be connected.

[0054] Thus, in the damper device 1 of the present embodiment, the geared motor 60 is held on the housing member 3 that is coupled to the frame 2 in a manner that covers the partition plate 20 of the frame 2 from the side opposite to the frame portion 21. Therefore, the frame 2 does not need to hold the geared motor 60, so the structure of the frame 2 can be simplified. In addition, since the geared motor 60 is used, it is not necessary to set the multiple gears of the gear transmission mechanism 65 in the housing member 3 to be independently rotatable. Therefore, the structure of the housing member 3 can also be simplified.

[0055] In this embodiment, the output member 69 is rotatably supported by the housing member 3. In addition, since the gear transmission mechanism 65 is entirely provided on the housing member 3 side, there is an advantage that the gears of the gear transmission mechanism 65 and the sector gear 690 of the output member 69 can be meshed with high accuracy.

[0056] (Structure of Connector Insertion Port 310)

[0057] The bottom plate portion 31 of the housing member 3 is provided with a Figure 7 The connector terminal 68 described above is exposed toward the connector insertion opening 310 on the opposite side to the partition plate 20. In the present embodiment, the connector insertion opening 310 is formed by cutting off the end of the bottom plate portion 31.

[0058] The first connector 16 connected to one end 851 of the plurality of motor lead wires 85 is inserted into the connector insertion port 310, and the plurality of motor lead wires 85 are electrically connected to the connector terminals 68. Figure 1 Therefore, by connecting the second connector 17 to the host control device, the drive signal can be supplied to the motor unit 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 the conductor is covered with an insulating layer.

[0059] Thus, in the damper device 1 of the present embodiment, the connector insertion opening 310 is provided on the bottom plate portion 31 of the housing member 3, and the connector terminal 68 for supplying power to the motor portion 61 is exposed toward the side opposite to the bulkhead plate 20 of the frame 2. Therefore, compared with a method in which the connector insertion opening 310 is opened at a position on the side surface of the housing member 3 away from the bottom plate portion 31 toward the bulkhead plate 20, the first connector 16 is more easily inserted into the connector insertion opening 310.

[0060] In addition, the connector terminal 68 is held on the geared motor 60 with the front end facing the opposite side of the partition plate 20. Therefore, it is not necessary to connect the motor portion 61 and the connector terminal 68 with a lead wire, so it is not necessary to thread and wind the lead wire. Therefore, the productivity of the damper device 1 can be improved.

[0061] In addition, unlike the structure in which the motor shaft of the motor part 61 is directly connected to the baffle plate, in this embodiment, the rotation of the motor part 61 is transmitted to the baffle plate 4 via the gear transmission mechanism 65 and the output member 69, so that the design freedom for the position of the motor part 61 can be improved. Therefore, the design freedom for the position of the connector terminal 68 held in the motor part 61 can also be improved. Therefore, the design freedom for the position of the connector insertion port 310 can be improved, such as by providing the connector insertion port 310 at the end of the bottom plate part 31.

[0062] (Structure of Heater 9, etc.)

[0063] Figure 8 is relative to Figure 1 The three-dimensional view of the engaging portion 76 of the heater lead wire 80 shown in FIG. Figure 4 As shown, in the frame portion 21 of the frame 2, a heater 9 is installed on the surface on the side where the baffle 4 is located so as to surround the opening portion 210. The heater 9 is in the form of a sheet formed between two sheets 96 and 97. The heater 9 is fixed to the frame portion 21 in a state where it is positioned by the holes 961 and 971 of the sheets 96 and 97 and the protrusion 215 of the frame portion 21. Therefore, it is possible to prevent the baffle 4 and the frame portion 21 from being adsorbed due to ice. Power supply portions 91 and 92 are respectively formed at both ends of the heater 9, and the power supply portions 91 and 92 have terminal portions 910 and 920 protruding from the heater 9 side to the other side Z2 in the Z direction. As shown Figure 2 As shown in FIG. 1 , a plurality of heater lead wires 80 are connected to the power supply parts 91 and 92. The heater lead wires 80 have a structure in which a conductive wire is covered with an insulating layer.

[0064] In this embodiment, the number of heater leads 80 is two, and the plurality of heater leads 80 is composed of a first lead 81 and a second lead 82. One end 811 and 821 of the first lead 81 and the second lead 82 are connected to the power supply parts 91 and 92 respectively, and the other end 812 and 822 are connected to the power supply parts 91 and 92 respectively. Figure 1 Thus, by simply connecting the second connector 17 to the host control device, power can be supplied to the heater 9 via the second connector 17 and the heater lead wire 80 .

[0065] In the present embodiment, the first lead 81 and the second lead 82 respectively include, at a position away from the rotation center axis L on one side Y1 in the Y direction: a first extension portion 816, 826 extending along the surface of the frame portion 21 side of the partition plate 20; a second extension portion 817, 827 extending along the outer surface of the housing member 3 or the frame 2; and a third extension portion 818, 828 extending away from the housing member 3. Here, the first extension portion 816, 826 and the second extension portion 817, 827 extend in a guide groove 7 provided on the housing member 3 or the frame 2. In the present embodiment, the guide groove 7 includes a first groove 71 for the first lead 81 to extend and a second groove 72 for the second lead 82 to extend.

[0066] like Figure 2 and Figure 8 As shown, the first groove 71 and the second groove 72 respectively include: a first portion 711, 721 extending from the boundary portion with the frame portion 21 to the boundary portion with the side plate portion 321 on the surface 20b on the frame portion 21 side of the bulkhead plate 20; and a second portion 712, 722 extending obliquely from the boundary portion with the bulkhead plate 20 to the boundary portion with the bottom plate portion 31 on the side plate portion 321 of the housing member 3. In the first groove 71, the first portion 711 and the second portion 712 are connected at the corner formed by the surface on the frame portion 21 side of the bulkhead plate 20 and the side plate portion 321, and in the second groove 72, the first portion 721 and the second portion 722 are connected at the corner formed by the surface on the frame portion 21 side of the bulkhead plate 20 and the side plate portion 321.

[0067] In the first groove 71, the first extension portion 816 of the first lead 81 extends inside the first portion 711, and the second extension portion 817 of the first lead 81 extends inside the second portion 712. In the second groove 72, the first extension portion 826 of the second lead 82 extends inside the first portion 721, and the second extension portion 827 of the second lead 82 extends inside the second portion 722. 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 of the side plate portion 321 on the bottom plate portion 31 side, and in the first lead 81 and the second lead 82, the fourth extension portions 815 and 825 and the third extension portions 818 and 828 extending between the second extension portions 817 and 827 and the third extension portions 818 and 828 extend together.

[0068] Reference Figure 8 As described below, the housing member 3 and the frame 2 are provided with an engaging portion 76 that engages with the fourth extension portions 815 and 825 of the first lead 81 and the second lead 82. In addition, the housing member 3 and the frame 2 are provided with a clamping portion 77 that clamps and holds the fourth extension portions 815 and 825 of the first lead 81 and the second lead 82 from both sides.

[0069] In the present embodiment, the clamping portion 77 includes: an end portion 315 of the bottom plate portion 31 exposed from the notch portion of the side plate portion 321; and a protrusion 326 protruding from the side plate portion 321 in a manner overlapping with the end portion 315. The fourth extension portions 815 and 825 of the first lead 81 and the second lead 82 are held by the clamping portion 77 by being clamped between the side plate portion 321 and the end portion 315 of the bottom plate portion 31 and between the protrusion 326 of the side plate portion 321 and the end portion 315 of the bottom plate portion 31. In the present embodiment, the protrusion 326 is formed at two locations.

[0070] In addition, 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 protrusion 317 that is opposed to the side plate portion 324 with a gap with respect to the bottom plate portion 31. In the engaging portion 76, the protrusion 317 engages with the fourth extension portions 815 and 825 of the first lead 81 and the second lead 82 by inserting the portion clamped by the clamping portion 77 and the portion between the third extension portions 818 and 828 between the end of the side plate portion 324 and the protrusion 317.

[0071] Thus, 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 81 and the second lead 82 included in the heater lead 80 extend in the first groove 71 and the second groove 72 provided in the housing member 3 or the frame 2. Therefore, even if the third extension portions 818, 828 of the first lead 81 and the second lead 82 are pulled, the holding force based on the first groove 71 and the second groove 72 resists the force, so that a large force is not applied to the connection portion of the first lead 81 and the second lead 82 with the heater 9. Therefore, it is possible to suppress the first lead 81 and the second lead 82 from falling off from the heater 9.

[0072] In addition, the fourth extensions 815 and 825 of the first lead 81 and the second lead 82 are held by the engaging portion 76 and the clamping portion 77. Therefore, even if the third extensions 818 and 828 of the first lead 81 and the second lead 82 are pulled, the holding force of the engaging portion 76 and the clamping portion 77 resists the force, so that a large force is not applied to the connection portion of the first lead 81 and the second lead 82 with the heater 9. Therefore, it is possible to suppress the first lead 81 and the second lead 82 from falling off the heater 9. In addition, the engaging portion 76 and the clamping portion 77 hold the first lead 81 and the second lead 82 together. Therefore, the first lead 81 and the second lead 82 can be efficiently threaded and wound, and the holding force of the engaging portion 76 and the clamping portion 77 is large.

[0073] (Refrigerator structure)

[0074] Fig. 9Yes Figure 1 FIG. 1 is an explanatory diagram of a refrigerator 100 having a damper device 1 shown in FIG. Fig. 9 In the refrigerator 100 shown, the refrigerator body 110 includes a plurality of storage chambers 111 and a cold air duct 112 for supplying cold air to the plurality of storage chambers 111. A damper device 1 to which the present invention is applied is provided in a cold air inlet 113 connecting the cold air duct 112 and the storage chambers 111. In addition, the refrigerator body 110 includes a cooler 114 for generating cold air, a fan 115 disposed in the cold air duct 112, and a control device 120. The control device 120 controls the opening and closing action of the damper device 1 based on a signal from a sensor (not shown) disposed in the storage chamber 111, and adjusts the timing or amount of supply of cold air to the storage chamber 111.

[0075] (Other embodiments)

[0076] The above embodiment is an example of the best embodiment of the present invention, but is not limited thereto, and various modifications can be implemented within the scope of the main purpose of the present invention. For example, the present invention can also be applied when the partition plate 20 is separated from the frame 2. In addition, the damper device 1 of the above embodiment is for refrigerators, but is not necessarily limited to the damper device used in refrigerators.

Claims

1. A damper device, characterized in that: have: a frame having an opening provided in a frame portion perpendicular to the partition plate; a baffle rotatably supported on the frame and used to open and close the opening; A driving mechanism, wherein the driving mechanism drives the baffle; as well as a shell member, the shell member is connected to the frame in a manner of covering the partition plate from the side opposite to the frame portion, and comprises a bottom plate portion constituting a space for arranging the drive mechanism between the bottom plate portion and the partition plate, and a cylindrical portion protruding from the bottom plate portion toward the partition plate side, The motor part as the driving source of the driving mechanism is held by the housing member in a state where the motor shaft faces the partition wall side. The bottom plate portion is provided with a connector insertion opening, the connector insertion opening exposing the connector terminal held in the motor portion toward the side opposite to the partition plate. The connector insertion port is formed by cutting off the end of the bottom plate portion. A pair of first positioning parts for positioning the motor part are formed on inner surfaces of the side plate parts of the cylinder part that are opposite to each other in the first direction. The drive mechanism comprises: the motor unit; an output member connected to the baffle; and a gear transmission mechanism for transmitting the rotation of the motor unit to the output member. The output member has a sector gear meshing with the gear of the gear transmission mechanism. In a second direction orthogonal to the first direction, a second positioning portion for positioning the housing member and the partition plate is provided between the first positioning portion and the sector gear. A pair of the second positioning portions are formed on the inner surface opposite to each other in the first direction.

2. The damper device according to claim 1, characterized in that: In the driving mechanism, the geared motor in which the motor portion and the gear transmission mechanism are integrated is held by the case member.

3. The damper device according to claim 1 or 2, characterized in that: A first connector is inserted into the connector insertion port, and the first connector is connected to one end of a plurality of motor lead wires. The other ends of the plurality of motor lead wires are connected to a second connector.

4. The damper device according to claim 3, characterized in that: have: a heater fixed to the frame; and a plurality of heater leads electrically connected to the heater, Ends of the plurality of heater lead wires on the opposite side from the heater are connected to the second connector.

5. The damper device according to claim 4, characterized in that: The plurality of heater leads respectively include: a first extension portion extending along the surface of the frame side of the partition plate; a second extension portion extending along the outer surface of the shell component or the outer surface of the frame; and a third extension portion extending away from the shell component and extending to the second connector. At least one of the first extension portion and the second extension portion extends in a guide groove provided in the housing member or the frame.

6. The damper device according to claim 5, characterized in that: At least one of an engaging portion that engages with a portion between the second extension portion and the third extension portion and a clamping portion that clamps and holds a portion between the second extension portion and the third extension portion from both sides is provided on an outer surface of the shell component or an outer surface of the frame.

7. The damper device according to claim 1, characterized in that: The first positioning portion is composed of a columnar portion having a shaft portion formed therein.

8. The damper device according to claim 1, characterized in that: The housing component is rectangular, and the second positioning portion is located at a long side of the rectangle.

9. The damper device according to claim 1, characterized in that: The second positioning portion includes: a cylindrical portion formed in the housing member; and A shaft portion is formed on the partition wall plate and is fitted into the cylindrical portion.

10. A refrigerator comprising the damper device according to any one of claims 1 to 9, characterized in that: have: Coolers; and a storage chamber supplied with cold air generated by the cooler, The damper device is arranged at a cold air inlet in the storage chamber.

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