JP2008133974A - Damper device - Google Patents

Abstract

To provide a highly reliable damper device that can reduce the risk of contact failure.
A motor comprising: flaps 2 and 3 for opening and closing the openings; frames 7 and 8 for forming the openings 2 and 3; and a case 9 having a motor 6 for driving the flaps 2 and 3 therein. 6 is disposed so as to be exposed to the outside of the case 9, and when the mating connector 12 is attached to the connecting connector 10, an external force is applied to the lead wire 11 connected to the mating connector 12. When the damper 9 is attached to the refrigerator, the case 9 is provided with a holding portion 9a for preventing the mating connector 12 from being detached. Even if the mating connector 12 is pulled, the mating connector 12 will not be lifted or detached, and there is a risk of malfunction due to poor contact. Can be reduced, it can be made reliable.
[Selection] Figure 5

Description

  The present invention relates to a damper device that opens and closes an opening with a flap, and particularly relates to a damper device that opens and closes a cold air passage inside a refrigerator to adjust the temperature.

  Conventionally, as a means to control the temperature of a plurality of refrigerator compartments in a refrigerator, a damper device that opens and closes the air passage of the cold air from the cooler to each refrigerator compartment with a flap and controls the amount of cold air flowing into each refrigerator compartment Is adopted.

  In damper devices, the type in which a connector for connection was attached to the tip of the lead wire connected to the motor has been used in the past, but in recent years, the lead wire has been abolished and the connector attached directly to the motor from the viewpoint of cost The type described in Patent Document 1 is known as a typical damper device.

  FIGS. 7 to 11 show a conventional damper device described in Patent Document 1, FIG. 7 is a front view of the conventional damper device, and FIG. 8 is a right side shown in a partial cross-section of the conventional damper device. FIG. 9 is a bottom view showing a partial cross section of a conventional damper device, FIG. 10 is a plan view showing the internal structure of a drive unit of the conventional damper device, and FIG. 11 is a main part of the conventional damper device. FIG.

  As shown in FIGS. 7 to 11, the damper device includes a drive unit 101, two frames 102 and 103 disposed on both sides of the drive unit 101, and openings 104 formed in the frames 102 and 103, respectively. 105, and two flaps 106 and 107 that open and close the openings 104 and 105. The drive unit 101 includes a case 108, a motor 109 that can rotate forward and backward, and a connector for connection connected to the motor. 110, a reduction gear train 111 composed of four gears for reducing the rotation of the pinion 109a attached to the rotation shaft of the motor 109, and the rotation of the motor 109 decelerated by the reduction gear train 111 is transmitted. Drive gear 112, a first driven gear 113 that meshes with the first drive gear 112 for a specific section, and a first drive gear 112. A second drive gear 114 that is arranged on the same axis and rotates by following the first drive gear 112 only in a predetermined region; and a second driven gear 115 that meshes with the second drive gear 114 only in a predetermined section; It is composed of

  When the damper device configured as described above is attached to the refrigerator, a mating connector (not shown) attached to the tip of a lead wire (not shown) coming from the refrigerator side is attached to the connector 110 for connection. Thereby, a damper apparatus will be in the state electrically connected with the refrigerator.

At this time, the damper device is generally fitted into a refrigerator after being fitted into a heat insulating material (not shown) such as polystyrene foam with the mating connector attached.
JP 2003-240102 A

  However, in the conventional configuration, the connector 110 for connecting the damper device is covered with the heat insulating material. Therefore, first, the mating connector is attached to the connector 110 for connecting, and then the damper device is fitted to the heat insulating material. In order to incorporate this insulation into the refrigerator, the mating connector and connecting connector must be installed before the damper device is fitted into the insulation, or when the insulation with the damper device is incorporated into the refrigerator. When the mating connector attached to the connector 110 is pulled by pulling the lead wire connected to the connector, contact failure occurs due to the mating connector floating or coming off, which hinders the operation of the damper device. Had the problem of fear of coming.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a highly reliable damper device that can reduce the risk of contact failure.

  In order to solve the above-described conventional problems, the damper device of the present invention includes a flap that opens and closes an opening, a frame that forms the opening, and a case that internally includes a motor that drives the flap. The connection connector connected to the motor is disposed so as to be exposed to the outside of the case, and a holding portion is provided in the case for holding the counterpart connector when the counterpart connector is attached to the connection connector. It is a thing.

  As a result, when the damper device is attached to the refrigerator, an external force is applied to the lead wire connected to the mating connector, and even if the mating connector attached to the connector for connection is pulled, the mating connector will not float or come off. Generation can be reduced.

  The damper device of the present invention can reduce the risk of hindering operation due to poor contact, and can be highly reliable.

  The invention according to claim 1 includes a flap that opens and closes an opening, a frame that forms the opening, and a case that includes a motor that drives the flap, and is connected to the motor. A connector is disposed so as to be exposed to the outside of the case, and when the mating connector is attached to the connector for connection, a holding portion for holding the mating connector is provided in the case, whereby the damper device is provided in the refrigerator. When an external force is applied to the lead wire connected to the mating connector and the mating connector attached to the connector is pulled, it is possible to reduce the occurrence of floating and disconnection of the mating connector, resulting in poor contact. This can reduce the risk of hindering the operation due to the high reliability.

  According to a second aspect of the present invention, in the first aspect of the present invention, in the state of the first aspect, the case is provided with a recess in which the connector for connection is exposed, and the counterpart connector is held by the holding portion. Is housed in the space of the recess, and the mating connector does not protrude from the upper end surface of the case in the mounted state, so that it can be brought into contact with other parts when handling the damper device or assembling it into a heat insulating material, etc. This can reduce the factors that cause the connector to be inadvertently bumped, causing the connector to be displaced or disconnected, and the mating connector does not protrude, further reducing the space required to accommodate the damper device. .

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the case is formed in a substantially rectangular parallelepiped shape, and a connection portion of the motor with the connection connector is directed to a corner portion in the case. The recesses are formed in the corners, and the corners of the case where the plane of the motor is usually circular and stored in a rectangular parallelepiped case has a poor space factor and becomes a dead space. The motor case can be designed more compactly, and the damper device can be miniaturized.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the holding portion can be mounted while bending the holding portion when the mating connector is mounted. As described above, by using the elastically deformable claw shape, the mating connector can be easily mounted, and the attachment workability can be improved.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the holding portion applies an external force to bend the holding portion when removing the mating connector. By providing the holding force releasing portion, when the damper device is removed from the refrigerator, the mating connector can be easily removed, and the exchange workability can be improved.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the holding force releasing portion is a flat portion extended above the claw shape, so that the holding force releasing portion has a simple structure. In addition, when the damper device is removed from the refrigerator, the mating connector can be easily removed, the exchange workability can be improved, and the cost can be reduced.

  According to a seventh aspect of the present invention, in the invention according to any one of the first to third aspects, a posture regulation that regulates a displacement of a mounting posture of the mating connector in proximity to the mating connector when the mating connector is mounted. When the lead wire connected to the mating connector is pulled in the direction perpendicular to the pull-out direction, the mating connector is held by the holding portion and supported by the rib. The inclination of the mating connector can be suppressed, and the risk of the mating connector coming off or damaging the connecting connector can be reduced.

  The invention according to claim 8 is the invention according to claim 7, wherein the posture restricting portion is a plate-like rib and has a portion perpendicular to the lead wire drawing direction of the mating connector. As a result, even when the lead wire is pulled in a direction perpendicular to the pull-out direction with a stronger force, it is possible to further suppress the inclination of the mating connector, causing the mating connector to come off or damage the connector for connection. Fear can be further reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. This description is not limited by this embodiment.

(Embodiment 1)
1 is a front view of a damper device according to a first embodiment of the present invention, FIG. 2 is a right side view showing a partial cross section of the damper device according to the first embodiment, and FIG. 3 is a damper device according to the same embodiment. FIG. 4 is a plan view showing the internal structure of the drive unit of the damper device according to the embodiment, and FIG. 5 is a view before mounting the mating connector as viewed from the direction A in FIG. FIG. 6 is a perspective view of the main part after the mating connector is mounted as viewed from the direction A in FIG.

  As shown in FIGS. 1 to 4, the damper device 1 includes openings 2 and 3, flaps 4 and 5 that open and close the openings 2 and 3, and forward and reverse rotation that drives the flaps 4 and 5. Geared type motor 6 having a speed reduction mechanism, frames 7 and 8 forming openings 2 and 3, case 9 provided integrally with frame 8 and having motor 6 inside, and openings of flaps 4 and 5 Shock-absorbing members 4a and 5a disposed on the surface facing the portions 2 and 3; contact portions 7a and 8a protruding toward the flaps 4 and 5 around the openings 2 and 3 of the frames 7 and 8; It is composed of

  The material of the case 9 is ABS resin.

  As shown in FIGS. 5 and 6, the connection connector 10 directly connected to the motor 6 is disposed so as to be exposed to the outside of the case 9. The case 9 includes an elastically deformable claw-shaped holding portion 9a provided integrally with the case 9, a slope portion 9b that forms a part of the holding portion 9a, and an upper portion of the claw-shaped holding portion 9a. And a plate-shaped rib 9d that is disposed in front of the connector 10 and is integrally formed with the case 9 and serves as a posture restricting portion. Yes.

  Here, two holding portions 9 a are provided upward from the outer surface of the case 9 so as to cover at least a part of the short side parallel to the short side of the connector 10 for connection.

  Further, two ribs 9d are provided upward from the outer surface of the case 9, and the largest area of the rib 9d is provided so as to be perpendicular to the lead wire drawing direction.

  When the damper device configured as described above is attached to the refrigerator, the damper device 1 can be connected to the connection connector 10 by attaching the mating connector 12 attached to the tip of the lead wire 11 coming from the refrigerator side. And become electrically connected.

  At this time, the damper device 1 is fitted into a refrigerator after being fitted into a heat insulating material (not shown) such as polystyrene foam.

  Therefore, first, it is necessary to attach the mating connector 12 to the connector 10 and then fit the damper device 1 into the heat insulating material.

  Note that the plate-like rib 9d serving as the posture restricting portion is disposed close enough to restrict displacement of the mounting posture of the mating connector 12 when the mating connector 12 is mounted.

  The case 9 is formed with a recess 9e at a portion where the connection connector 10 is exposed. When the mating connector 12 is held by the holding portion 9a, the mating connector 12 is accommodated in the space of the recess 9e. The casing 9 is configured not to protrude from the upper end surface.

  When the case 9 is formed in a substantially rectangular parallelepiped shape, the concave portion 9e is disposed so that the connection portion of the motor 6 with the connector 10 for connection is directed toward the corner portion in the case 9, and the concave portion 9e 9e is formed in this corner.

  About the damper apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  As shown in FIGS. 5 and 6, when the mating connector 12 is attached to the connecting connector 10, first, the mating connector 12 and the inclined surface portion 9 b of the holding portion 9 a abut. Furthermore, when the mating connector 12 is pushed along the inclined surface 9b, the mating connector 12 can be easily attached to the connecting connector 10 because the holding portion 9a bends outward. After the mating connector 12 is attached, the holding portion 9a returns to the original state, and the mating connector 12 can be securely held.

  Further, when the damper device 1 is attached to the refrigerator, when an external force is applied to the lead wire 11 connected to the mating connector 12, for example, when the lead wire 11 is pulled in the pulling direction (upward direction in FIG. 5), The mating connector 12 is held by the holding portion 9a, and the mating connector 12 can reduce the occurrence of floating and detachment, reduce the possibility of hindering operation due to poor contact, and have high reliability. Can do.

  Further, the case 9 is provided with a recess 9e through which the connector 10 is exposed, and the mating connector 12 is accommodated in the space of the recess 9e while the mating connector 12 is held by the holding portion 9a. Since the mating connector 12 does not protrude from the upper end surface of the case 9 in the mounted state, the mating connector 12 may be brought into contact with other parts or inadvertently bumped when handling the damper device or incorporating it into a heat insulating material or the like. As a result, it is possible to further reduce the cause of displacement or disconnection due to the force applied to the connector, and further, since the mating connector 12 does not protrude, the space required for housing the damper device can be made more compact.

  In addition, since the case 9 is formed in a substantially rectangular parallelepiped shape, the connection portion of the motor 6 with the connection connector 10 is arranged toward the corner portion in the case 9, and the concave portion 9e is formed in the corner portion. The corner of the case 9, which has a bad space factor when it is housed in a rectangular parallelepiped case and becomes a dead space, can be effectively used for the electrical connection of the connector, and the case 9 can be designed more compactly. Can be miniaturized.

  Further, when the lead wire 11 connected to the mating connector 12 is pulled in a direction perpendicular to the pull-out direction (diagonal left direction in FIG. 5), the rib 9d serving as a posture regulating portion is brought close to the mating connector 12, By providing so as to restrict the displacement of the mounting posture of the mating connector 12, the mating connector 12 is held by the holding portion 9a and supported by the rib 9d, and the mating connector 12 is in the mounting posture. The displacement is restricted and the inclination can be suppressed, and the possibility that the mating connector 12 is detached or the connecting connector 10 is damaged can be reduced.

  The rib 9d is a plate-like rib, and the largest area of the rib 9d is perpendicular to the lead-out direction of the lead wire 11, so that the lead wire 11 is perpendicular to the lead-out direction with a stronger force. Even when it is pulled, the inclination of the mating connector 12 can be further suppressed, and the possibility that the mating connector 12 is disconnected or the connection connector 10 is damaged can be further reduced.

  Next, when removing the damper device 1 from the refrigerator, the holding portion 9a is easily tilted by applying an external force to the flat portion 9c provided on the holding portion 9a by using a tool or the like. The holding force is released, the mating connector 12 can be easily removed, and the exchange workability can be improved.

  Further, the holding force releasing portion is a flat portion 9c extending upward in the claw shape, so that the holding force releasing portion can be made simple, and when the damper device 1 is removed from the refrigerator, the mating connector can be easily attached. 12 can be removed, the replacement workability can be improved, and the cost can be reduced.

  Further, since the holding portion 9a is provided integrally with the case 9, it is possible to reduce the floating and detachment of the mating connector 12 without increasing the number of components, and to reduce the cost.

  Further, by providing the rib 9d integrally with the case 9, it is possible to reduce the risk of damaging the connection connector 10 without increasing the number of components, and to reduce the cost.

  As described above, in the damper device of the present embodiment, the counterpart connector 12 attached to the connection connector 10 is held by the holding portion 9 a provided in the case 9. The lead wire 11 connected to the mating connector 12 is pulled before the damper device 12 is fitted into the heat insulating material and the damper device 1 is fitted into the heat insulating material or when the heat insulating material into which the damper device 1 is fitted is incorporated into the refrigerator. Even when the mating connector 12 is lifted or detached, it is possible to reduce the risk of contact failure and malfunction, and to achieve high reliability.

  In addition, by making the holding portion 9a elastically deformable, it is possible to improve the mounting workability so that the mating connector 12 can be easily mounted while the holding portion 9a is easily bent outward.

  Further, since the holding portion 9a can be easily deflected to the outside and the holding force can be released by using the flat portion 9c provided on the holding portion 9a, the mating connector 12 can be easily removed and the exchange workability can be improved. In addition, there is no need to add parts, and the structure can be made inexpensive with a simple structure.

  In the present embodiment, a so-called two-flap damper with two flaps is used, but a so-called one-flap damper with one flap may be used.

  In this embodiment, two ribs 9d are provided, but at least one rib may be provided.

  In the present embodiment, two plate-like ribs 9d are provided in parallel, but a substantially U-shaped rib provided with a further rib than the mating connector between the two ribs. Good.

  As described above, the damper device according to the present invention can reduce the risk of hindering operation due to poor contact and can be highly reliable, so that the fluid passage is opened and closed and the fluid supply control is performed. Applicable to usage.

The front view of the damper device in Embodiment 1 of the present invention The right view shown in the partial cross section of the damper apparatus in the same embodiment The bottom view shown with the partial cross section of the damper apparatus in the same embodiment The top view which shows the internal structure of the drive part of the damper apparatus in the embodiment The principal part perspective view before mounting | wearing of the other party connector seen from the A direction of FIG. The principal part perspective view after mounting | wearing of the other party connector seen from the A direction of FIG. Front view of conventional damper device Right side view with a partial cross section of a conventional damper device Bottom view showing a partial cross section of a conventional damper device The top view which shows the internal structure of the drive part of the conventional damper apparatus Expanded longitudinal sectional view of main parts of a conventional damper device

Explanation of symbols

2, 3 Opening 4, 5 Flap 6 Motor 7, 8 Frame 9 Case 9a Holding part 9c Flat part (holding force releasing part)
9d rib (posture control part)
9e Concave portion 10 Connector for connection 11 Lead wire 12 Mating connector

Claims (8)

  A flap that opens and closes an opening, a frame that forms the opening, and a case that includes a motor that drives the flap inside, and a connector for connection connected to the motor is exposed to the outside of the case. The damper device is provided with a holding portion for holding the mating connector when the mating connector is attached to the connection connector.   2. The damper device according to claim 1, wherein the case is provided with a recess in which the connector for connection is exposed, and the counterpart connector is accommodated in a space of the recess in a state where the counterpart connector is held by the holding portion. .   The said case was formed in the substantially rectangular parallelepiped shape, the connection part with the said connector for connection of the said motor was arrange | positioned toward the corner part in the said case, and the said recessed part was formed in the said corner part. Damper device.   The damper according to any one of claims 1 to 3, wherein the holding portion has a claw shape that is elastically deformable so that the holding portion can be attached while being bent when the mating connector is attached. apparatus.   The damper device according to any one of claims 1 to 4, wherein the holding portion includes a holding force releasing portion for applying an external force to bend the holding portion when the mating connector is removed.   The damper device according to claim 5, wherein the holding force releasing portion is a flat portion extending upward of the claw shape.   The damper device according to any one of claims 1 to 3, wherein a posture restricting portion that restricts a displacement of a mounting posture of the counterpart connector is provided in the case in proximity to the counterpart connector when the connector is attached.   The damper device according to claim 7, wherein the posture restricting portion is a plate-like rib and has a portion perpendicular to a lead wire drawing direction of the mating connector.

Images