JP2005212545A - Door type damper and air-conditioning device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door type damper and an air-conditioning device using it capable of simplifying the shape of the member composing of flow path circulating fluid. <P>SOLUTION: The air-conditioning device 1 having a casing 2 forming a flow path 3 in the inside is provided with an air mix damper 13 in the flow path 3. The air-conditioning device has the air mix damper 13 damper, a damper body 13a, and approximately cylindrical bearing members 13b, 13c supporting the air mix damper 13 by enabling a damper body 13a to rock around one axis line, and to move it in the direction of the one axis. A slide part 33 receiving the end surface of the inside of the flow path 3 of the bearing members 13b, 13c is provided on the damper body 13a. The bearing member 13b is made to be an approximately cylindrical shape provided on the inner wall surface of the casing 2 paralleling the one axis line to the axis line, and an inclined surface 34 inclined relative to the one axis line is provided on the end surface toward a partition plate 5 side along the peripheral direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a door type damper and an air conditioner using the same.

As an air conditioner, for example, as in a vehicle air conditioner, by controlling the flow direction and flow rate of conditioned air in a flow path provided inside, it can be applied to a plurality of indoor areas. Some of them can supply conditioned air at different temperatures to individually adjust the ambient temperature in each region.
As such an air conditioner, for example, there is an air conditioner described in Patent Document 1 described later. This air conditioner uses a door (door type damper) to control the flow direction and flow rate of conditioned air in an air passage (flow path).
In addition, this air conditioner has a sealing portion that seals between the air conditioning case and the door on the inner wall surface of the air conditioning case that constitutes the air path in order to improve the performance of the air conditioner by reliably closing the air path. Is provided.

JP 09-175146 A (paragraphs [0016] to [0041] and FIGS. 1 to 5)

  However, if a sealing part is provided on the inner wall surface of the air conditioning case, the structure of the air conditioning case becomes complicated, so the degree of freedom in designing the air conditioning case is reduced, and the manufacturing process becomes complicated, producing air conditioning equipment. This will increase the cost.

  This invention is made in view of such a situation, Comprising: The door type damper which can simplify the shape of the member which comprises the flow path through which a fluid distribute | circulates, and an air conditioning apparatus using the same are provided. The purpose is to do.

In order to solve the above problems, the door type damper of the present invention and the air conditioner using the same adopt the following means.
That is, the door type damper according to the present invention includes a damper main body provided in a flow path through which a fluid is circulated so as to be able to swing or rotate around a single axis and to be displaced in the single axis direction. A door-type damper that closes the flow path by being positioned at a closed position around the passage, and when the damper body is in the closed position, presses the damper body toward one of the uniaxial directions. And a pressing mechanism for closely contacting the inner wall surface of the flow path.

In the door type damper according to the present invention, when the damper main body is in the closed position, the damper main body is pressed toward one side in the uniaxial direction by the pressing mechanism. Adhering, sealing between these is performed.
That is, when this door type damper is used, it is not necessary to provide a seal member on the damper main body or the flow path inner wall surface in the region on one side in the uniaxial direction.
Here, the closing position is not limited to one place, and can be set at a plurality of places around the one axis.

  In this door type damper, an inclined surface inclined with respect to the uniaxial line is formed on a track of the damper main body on one of the damper main body and the inner wall surface on the other side in the uniaxial direction of the flow path. And at least the damper main body abuts on the inclined surface in a state where the damper main body is in the vicinity of the closing position, and the tilt main body swings or rotates around the one axis. A sliding portion that slides on the surface may be provided, and the inclined surface and the sliding portion may constitute the pressing mechanism.

In the door type damper configured as described above, the inclined surface and the sliding portion are in contact with each other at least in a state where the damper main body is in the vicinity of the closed position.
In this state, by swinging or rotating the damper main body around the uniaxial line, the sliding portion slides on the inclined surface, and the inclined surface and the sliding portion are relatively displaced in the uniaxial direction. Thereby, the damper main body provided with any one of the inclined surface and the sliding portion is displaced in the uniaxial direction.

That is, in this door type damper, the inclined surface and the sliding portion constitute an end cam (pressing mechanism) that displaces the damper main body along the one axis along with the swing or rotation around the one axis. Yes.
Then, by swinging or rotating the damper main body in a direction in which the sliding portion is close to the apex of the inclined surface, the damper main body is pressed toward the one axial direction side of the flow path, and this one side Thus, the inner wall surface of the flow path is brought into close contact with each other, and sealing between the damper main body and the inner wall surface of the flow path is performed in this one side region.
Here, on the inner wall surface side of the flow path, an inclined surface or a sliding portion may be provided as an independent member. Further, on the constituent member of the door type damper provided on the inner wall surface of the flow path, for example, a damper main body You may provide on the bearing member which supports the rocking | fluctuation or rotation around the said one axis | shaft.

  In the door type damper, the sliding portion may be positioned at the apex of the inclined surface when the damper main body is in the closed position.

In the door type damper configured in this manner, the damper main body is positioned at the closed position in a state where the sliding portion is positioned at the apex of the inclined surface. Then, by further rotating the damper main body and causing the sliding portion to exceed the apex of the inclined surface, the pressing of the damper main body on one side in the uniaxial direction is released, and the damper main body and the flow path on this one side are released. The seal between is released.
Further, by further rotating the damper main body and making one rotation around the one axis, the damper main body is again positioned at the closed position, and the flow path can be closed.

That is, in the door type damper having this configuration, it is possible to repeatedly switch between closing and opening the flow path only by rotating the damper main body in one direction around the one axis.
For this reason, the drive device for driving the damper main body does not need a configuration for rotating the damper main body in the reverse direction, simplifying the device configuration and reducing the manufacturing cost.

  Moreover, the air conditioning apparatus concerning this invention is an air conditioning apparatus which has a damper which opens and closes the flow path through which conditioned air distribute | circulates, Comprising: As said damper, the door-type damper in any one of Claim 1 to 3 It is characterized by using.

  In the air conditioner configured as described above, since the door type damper according to any one of claims 1 to 3 is used as the damper, it is used for sealing between the damper main body and the flow path inner wall surface. A part of the sealing member can be omitted.

  This air conditioner has a casing and a flat partition plate that partitions the inside of the casing to form the flow path, and the door damper closes the damper main body to the partition plate. You may be set as the structure which seals between the said partition plate and the said damper main body.

In the air conditioner configured as described above, the damper main body and the partition plate are sealed by bringing the damper main body into close contact with the partition plate.
That is, since it is not necessary to provide a sealing member on the partition plate, the partition plate can be created by a simple method such as punching from a blank, for example, compared to a case where the partition plate is created by injection molding or the like. Manufacturing costs can be reduced.

According to the door type damper configured as described above and the air conditioner using the same, a part of the seal member that seals between the damper main body and the inner wall surface of the flow path is omitted, and the fluid (conditioned air) It is possible to simplify the shape of the members constituting the flow path through which the gas flows.
Thereby, the freedom degree of design of an air conditioning apparatus becomes high. Moreover, manufacture of an air conditioning apparatus becomes easy and manufacturing cost can be reduced.

Embodiments according to the present invention will be described below with reference to the drawings.
[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
An air conditioner 1 according to the present embodiment is a vehicle air conditioner having a cooling cycle and a heating cycle. As shown in FIG. 1, a casing 2 having a flow path 3 through which conditioned air flows is provided. Have.

Although not shown, the casing 2 is connected to the upstream end of the flow path 3 with a blower for blowing air outside or inside the vehicle compartment, and is opened in the vehicle compartment on the downstream side to blow the blower from the vehicle compartment. A blower outlet for discharging is provided.
In the present embodiment, the casing 2 has a defroster outlet that discharges conditioned air toward the window of the vehicle, a face-side outlet that discharges conditioned air toward the upper body of the passenger, A foot-side outlet that discharges conditioned air toward the foot is provided.

  Further, an evaporator 4 constituting a part of the cooling cycle is provided on the upstream side of the flow path 3. The evaporator 4 cools the conditioned air by exchanging heat between the refrigerant flowing through the evaporator 4 and the conditioned air flowing through the flow path 3.

Here, as shown in FIG. 2, the casing 2 has a flow path 3 formed therein by connecting a driver seat side member 2 a constituting the driver seat side and a passenger seat side member 2 b constituting the passenger seat side. It is set as the formed structure.
The space in the driver seat side member 2 a and the space in the passenger seat side member 2 b are partitioned by a flat partition plate 5, and the flow path 3 is at least downstream from the evaporator 4, and the driver seat It is divided into a side space flow path 3a and a passenger seat side space flow path 3b (FIG. 1 shows the passenger seat side space flow path 3b side in the casing 2).

Here, each of the air outlets is independently provided in the driver's seat side space channel 3a and the passenger's seat side space channel 3b.
The driver-seat-side space flow path 3a and the passenger-seat-side space flow path 3b are configured in substantially the same manner, and thus are collectively referred to as the flow path 3 in the following description.

As shown in FIG. 1, the flow path 3 is provided with a bypass flow path 11 that leads from a downstream position of the evaporator 4 to a further downstream position. The conditioned air that has passed through 11 is mixed with the conditioned air in the flow path 3 again.
A heater 12 that constitutes a part of a heating cycle that uses exhaust heat of a vehicle power source or the like is provided in the bypass channel 11, and the conditioned air flowing in the bypass channel 11 is heated by the heater 12. It has come to be.
Further, in the flow path 3, at the branch point with the bypass flow path 11, the flow rate of the conditioned air flowing through the bypass flow path 11 is controlled by controlling the opening degree of the flow path 3 and the opening degree of the bypass flow path 11. An air mix damper 13 to be controlled is provided.

  That is, the air conditioner 1 operates the air mix damper 11 to control the ratio of the conditioned air heated by the heater 12 in the bypass channel 11 among the conditioned air flowing through the channel 3. The temperature of the conditioned air discharged from each of the outlets is adjusted downstream of the flow path 3.

In the present embodiment, the air mix damper 13 includes a damper main body 13a provided so as to be swingable about one axis perpendicular to the partition plate 5 (about an axis perpendicular to the paper surface of FIG. 1), and the damper main body 13a. It is comprised by the door type damper which has drive devices (not shown), such as a motor, which rocks | fluctuates around one axis.
One end of the damper main body 13a is held at a branch point between the flow path 3 and the bypass flow path 11, and the other end can be swung upstream.
The air mix damper 13 includes the damper main body 13a in a position where the flow path 3 is closed (flow path closed position) as shown by a solid line in FIG. 1 and a bypass flow path 11 as shown by a two-dot chain line in FIG. The opening of the flow path 3 and the opening of the bypass flow path 11 are adjusted by moving to an arbitrary position between the position where the inlet is closed (bypass flow path closing position).

  Here, at the position facing the damper main body 13a at the flow path closed position in the casing 2 and the position facing the damper main body 13a at the bypass flow path closed position, the receiving portions R that receive the periphery of the damper main body 13a are respectively provided. Is provided. These receiving portions R are provided with a seal member (not shown) over the entire length thereof, and when the damper main body 13a is received, the seal between the damper main body 13a and the receiving portion R is sealed by the seal member. Is to be done.

In the flow path 3, the downstream side of the position where the bypass flow path 11 joins is divided into a plurality of branch paths that respectively lead to the respective outlets.
In the present embodiment, the flow path 3 branches into a defroster-side flow path 21 that leads to the defroster outlet, a face-side path 22 that leads to the face-side outlet, and a foot-side path 23 that leads to the foot-side outlet. Has been.
Here, in the flow path 3, the inlet of the foot side flow path 23 is opened upstream of the inlet of the defroster side flow path 21 and the inlet of the face side flow path 22.

  In the flow path 3, one of the defroster side flow path 21 and the face side flow path 22 is selectively opened at the branch point between the defroster side flow path 21 and the face side flow path 22, and the other is A first mode switching damper 26 that is closed is provided.

  In the present embodiment, the first mode switching damper 26 has a plate-like damper body 26a provided so as to be swingable around a single axis perpendicular to the partition plate 5, and the damper main body 26a is swung around the single axis. It is comprised by the door type damper which has a drive device (not shown) to move.

One end of the damper main body 26a is held at a branch point between the defroster side flow path 21 and the face side flow path 22, and the other end can be swung on the upstream side.
The first mode switching damper 26 is configured so that the damper main body 26a is closed at the position where the inlet of the defroster side passage 21 is closed (defroster closed position) as shown by a solid line in FIG. Only one of the defroster-side flow path 21 and the face-side flow path 22 is selected by positioning it at either one of the positions where the inlet of the face-side flow path 22 is closed (face closing position). Open.

  That is, the air conditioner 1 is configured to switch between a mode in which conditioned air is discharged from the defroster outlet and a mode in which conditioned air is discharged from the face-side outlet by operating the first mode switching damper 26. It is said that.

  Here, in the portion constituting the inlet of the defroster side flow channel 21 and the portion constituting the inlet of the face side flow channel 12 in the casing 2, a receiving portion R for receiving the periphery of the damper body 26a at the closed position is provided. Is provided. These receiving portions R are provided with a seal member (not shown) over the entire length thereof, and when the damper main body 26a is received, the seal between the damper main body 26a and the receiving portion R is sealed by the seal member. Is to be done.

  On the other hand, in the flow path 3, there is a flow point at a branch point between the foot side flow path 23 and the flow path 3 downstream of the foot side flow path 23 (that is, the inlet of the defroster side flow path 21 and the face side flow path 22). A second mode switching damper 27 that selectively opens one of the path 3 and the foot-side flow path 23 and closes the other is provided.

  In the present embodiment, the second mode switching damper 27 includes a plate-shaped damper main body 27a provided so as to be swingable around a single axis orthogonal to the partition plate 5, and the damper main body 27a swinging around the single axis. It is comprised by the door type damper which has a drive device (not shown) to move.

One end of the damper main body 27a is held at a branch point between the flow path 3 and the foot side flow path 23, and the other end can be swung on the upstream side.
The second mode switching damper 27 allows the damper main body 27a to flow as shown by a solid line in FIG. 1 to close the inlet of the foot side flow path 23 (foot closed position) and as shown by a two-dot chain line in FIG. Only one of the flow path 3 and the foot-side flow path 23 is selectively opened by moving to one of the positions where the path 3 is closed (defroster face closed position). To do.

  That is, the air conditioner 1 operates the second mode switching damper 27 to discharge the conditioned air from the defroster outlet or the face side outlet, and the mode of discharging the conditioned air from the foot side outlet. It is set as the structure which switches.

  Here, the portion constituting the inlet of the foot-side channel 23 in the casing 2 and the downstream side of the foot-side channel 23 in the channel 3 receive the periphery of the damper main body 27a at the closed position, respectively. Part R is provided. These receiving portions R are provided with a seal member (not shown) over the entire length thereof, and when the damper main body 27a is received, the seal between the damper main body 27a and the receiving portion R is sealed by the seal member. Is to be done.

As the air mix damper 13 and the first and second mode switching dampers 26 and 27 described above, the door type damper according to the present invention is used.
Since the basic configuration of the air mix damper 13 and the first and second mode switching dampers 26 and 27 is substantially the same, the detailed configuration of the air mix damper 13 will be described below as a representative of them. .

  As shown in FIG. 3, the air mix damper 13 is provided on a damper main body 13 a provided in the flow path 3 and an inner wall surface of the flow path 3, and the damper main body 13 a is uniaxially orthogonal to the surface of the partition plate 5. It has substantially cylindrical bearing members 13b and 13c that support the swinging of the periphery and the movement in the uniaxial direction.

  As shown in FIGS. 3 and 4, the damper main body 13 a includes a rotating shaft 31 and a substantially flat valve body 32 provided on the side surface of the rotating shaft 31 so as to be substantially parallel to the rotating shaft 31. As shown in FIG. 3, the rotating shaft 31 is held in parallel with the one axis by the bearing members 13b and 13c.

In the present embodiment, as shown in FIG. 4, a notch C is provided on each end portion side of the rotating shaft 31 at the connection portion of the valve body 32 with the rotating shaft 31, and the valve body 32. Between the rotary shaft 31 and the rotary shaft 31, the end portions on the inner side of the flow path 3 of the bearing members 13b and 13c are received.
As shown in FIG. 3, the surface of each notch C facing each end of the rotary shaft 31 is a sliding portion 33 that receives the end surface inside the flow path 3 of the bearing members 13b and 13c.

The bearing member 13b has a substantially cylindrical shape provided on the inner wall surface of the casing 2 so that the one axis and the axis are parallel to each other, and an end surface facing the partition plate 5 is inclined with respect to the one axis. 34 is provided along the circumferential direction.
The inclined surface 34 receives the sliding part 33 of the damper main body 13a and guides the sliding part 33 in the uniaxial direction as the damper main body 13a swings around the uniaxial line.

In the present embodiment, the bearing member 13b is in contact with the sliding portion 33 of the damper main body 13a in a state where at least the damper main body 13a is in the vicinity of the flow path closing position (the position indicated by the one-dot chain line in FIG. 3). An inclined surface 34a and a second inclined surface 34b that comes into contact with the sliding portion 33 of the damper main body 13a in a state where at least the damper main body 13a is in the vicinity of the bypass flow path blockage position (position indicated by a two-dot chain line in FIG. 3). Have.
The first inclined surface 34a is gradually inclined toward the partition plate 5 as the damper main body 13a moves in the swing direction when the damper main body 13a goes to the flow path closing position, and the second inclined surface 34b is the damper main body 13a. As the angle goes in the swinging direction toward the bypass flow path blocking position, the inclined surface is gradually inclined toward the partition plate 5 side.
Further, a plane 35 perpendicular to the uniaxial line from the apexes is connected to the apexes of the first and second inclined surfaces 34a and 34b.

That is, in the air mix damper 13, the sliding cam 33, the inclined surface 34, and the flat surface 35 cause the damper main body 13a to swing along the one axis along with the swing around the one axis (pressing pressure). Mechanism) 36 is configured.
The end cam 36 swings the damper main body 13a in a direction in which the sliding portion 33 approaches the apex of the inclined surface 34, so that the damper main body 13a presses toward the partition plate 5 in the uniaxial direction. At the same time, the damper main body 13a is brought into close contact with the partition plate 5 with the sliding portion 33 riding on the flat surface 35 as the damper main body 13a further swings.

Here, third and fourth inclined surfaces 34c and 34d are also provided at the tip of the bearing member 13c. The third inclined surface 34c has the same magnitude and length of inclination as the first inclined surface 34a, and the direction of inclination is reversed. Further, the fourth inclined surface 34d has the same magnitude and length of inclination as the second inclined surface 34b, and the inclination direction is reversed.
The third and fourth inclined surfaces 34c and 34d allow displacement of the damper main body 13a toward the partition plate 5 when the damper main body 13a swings toward the flow path closed position or the bypass flow path closed position. When the damper main body 13a swings in a direction away from the flow path closed position and swings in a direction away from the bypass flow path closed position, the damper main body 13a receives the sliding portion 33 and receives the damper main body 13a. 13 a is guided in a direction away from the partition plate 5.

In the air conditioner 1 configured as described above, during the maximum heating operation or the maximum cooling operation of the air conditioner 1, the damper main body 13a of the air mix damper 13 is swung around the rotation shaft 31 by the drive device. , It is located at the channel closed position or the bypass channel closed position.
Further, in the air conditioner 1, at the time of mode switching, the damper main body 26a of the first mode switching damper 26 is swung around the rotation shaft 31 by the driving device and is positioned at the defroster closed position or the face closed position. Alternatively, the damper main body 27a of the second mode switching damper 27 is swung around the rotation shaft 31 by the driving device and is positioned at the foot closed position or the defroster face closed position.

When these damper main bodies 13a, 26a, and 27a are swung toward the closing positions, respectively, the end cams 36 are pressed toward the partition plate 5 side by the rocking.
Specifically, as the damper body swings, the damper body sliding portion 33 is guided toward the apex of the inclined surface 34 of the bearing member 13b, and each damper body faces the partition plate 5 side. To be displaced.
In a state where each damper main body is positioned at the closed position, the sliding portion 33 rides on the flat surface 35 of the end cam 36, and the damper main body is brought into close contact with the partition plate 5.

Thus, when these damper main bodies 13a, 26a, 27a are respectively in the closed position described above, they are pressed against the partition plate 5 by the end cam 36 and brought into close contact with the partition plate 5, and the seal between them is sealed. Is stopped.
That is, in this air conditioner 1, it is not necessary to provide the sealing member on the partition plate 5.
For this reason, in this air conditioning apparatus 1, the shape of the partition plate 5 can be simplified and the freedom degree of design of the air conditioning apparatus 1 becomes high.
Moreover, in this structure, the partition plate 5 can be produced by a simple method such as punching from a blank, for example, and the manufacturing cost can be reduced as compared with the case where the partition plate 5 is produced by injection molding or the like.

  Here, in the present embodiment, an example in which the inclined surface 34 is provided on the bearing member 13b and the sliding portion 33 is provided on the damper main body 13a is shown, but the inclined surface is not limited to this and is provided on the damper main body 13a. The sliding portion 33 may be provided on the bearing member 13b.

  Further, in this embodiment, for each door type damper, two closing positions are set, and the damper main body is reciprocally swung between these closing positions, but the closing position is not limited to this. It is good also as one place, and good also as multiple places more than three places.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 5, the door type damper 41 according to the present embodiment is provided in the opening W connecting the two flow paths S <b> 1 and S <b> 2, and opens and closes the opening W.
As shown in FIG. 6, the door type damper 41 has substantially the same configuration as the air mix damper 13 shown in the first embodiment, and instead of the damper main body 13, The main feature is that a damper main body 41a is provided in which a pair of valve bodies 32 are provided symmetrically with the rotating shaft 31 in between.
Hereinafter, the same or similar configurations as those of the air mix damper 13 illustrated in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the door type damper 41, in the bearing member 13b that supports the damper main body 41a, the first and second inclined surfaces 34a and 34b are arranged so that the apex side thereof is in contact, and the damper main body 41a is in the closed position (FIG. 5). 6 and the position indicated by the solid line in FIG. 6, the sliding portion 33 is configured to be located at the common apex P of the first and second inclined surfaces 34a and 34b.

In the door type damper 41, the damper main body 41 a is located at the closed position when the sliding portion 33 is located at the common vertex P of the first and second inclined surfaces 34 a and 34 b, and the end cam 36 The damper main body 41a is pressed to one side in the uniaxial direction, and sealing between the damper main body 41a and the inner wall surface of the flow path is performed on this one side.
Then, the damper main body 41a is further rotated so that the sliding portion 33 exceeds the common apex P of the first and second inclined surfaces 34a, 34b, for example, at a position indicated by a two-dot chain line in FIGS. By positioning, the pressing of the damper main body 41a to one side in the uniaxial direction is released, and the sealing between the damper main body 41a and the flow path inner wall surface on this one side is released.
Further, by further rotating the damper main body 41a and making one rotation around the one axis, the damper main body 41a can be positioned at the closed position again and the opening W can be closed.

That is, in the door type damper having this configuration, the opening W can be repeatedly switched between closing and opening only by rotating the damper main body in one direction around the one axis.
For this reason, the drive device for driving the damper main body 41a does not need a configuration for rotating the damper main body 41a in the reverse direction, thereby simplifying the device configuration and reducing the manufacturing cost.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
The door type damper 51 according to the present embodiment is used when the closing position is one, and in the air mix damper 13 shown in the first embodiment, a bearing is used instead of the bearing members 13b and 13c. The main feature is that the members 52 and 53 are used.
Hereinafter, the same or similar configurations as those of the air mix damper 13 illustrated in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

The door type damper 51 includes a bearing member 52, 53 that supports the damper main body 13a, and the end surface of the bearing member 52 corresponding to the bearing member 13b facing the bearing member 53 side is surrounded by a circumferential point from one circumferential direction. The inclined surface 54 is gradually directed toward the bearing member 53 along the direction. That is, the inclined surface 54 is a spiral inclined surface coaxial with the bearing member 52.
Here, although not shown, the end surface of the bearing member 53 facing the bearing member 52 side is formed with a spiral inclined surface whose inclination direction is opposite to that of the inclined surface 54, whereby the damper main body 13 a is inclined. Displacement toward the bearing member 53 side when rotating toward the apex side of the surface 54 is allowed, and when the damper main body 13a descends from the apex side of the inclined surface 54, the sliding portion 33 of the damper main body 13a is received. Thus, the damper main body 13a is guided in a direction away from the apex.

In the door type damper 51 configured as described above, the sliding portion 33 is guided by the inclined surface 54 by rotating the damper main body 13 a around the rotation shaft 31, and the damper main body 13 a is moved in the axial direction of the rotation shaft 31. Be displaced.
That is, the sliding portion 33 and the inclined surface 54 constitute an end cam 55 that displaces the damper main body 13a in the axial direction.

And the damper main body 13a is displaced to the bearing member 53 side by rotating the damper main body 13a in the direction which the sliding part 33 goes to the vertex of the inclined surface 54, and it adheres to the flow-path inner wall surface by the side of the bearing member 53. And sealing between them is performed.
Further, by rotating the damper main body 13a in the direction in which the sliding portion 33 descends from the apex of the inclined surface 54, the damper main body 13a is displaced toward the bearing member 52, and the damper main body 13a flows toward the bearing member 53. Separated from the inner wall surface, the seal between them is released.

Here, in the present embodiment, the example in which the sliding portion 33 is provided in the damper main body 13a and the inclined surfaces that guide the sliding portion 33 are provided in the bearing members 52 and 53 is shown, but the present invention is limited to this. For example, an inclined surface may be provided on the damper main body side, and a sliding portion may be provided on the bearing member side.
A door type damper 56 employing such a configuration is shown in FIG.
This door type damper 56 uses a damper main body 56a having an inclined surface 57 instead of the damper main body 13a shown in the first embodiment, and instead of the bearing members 13b and 13c, 56b and 56c having sliding portions 58 are provided. The main feature is the use.

The damper main body 56a has an inclined surface 57 that is inclined with respect to the axis of the rotary shaft 31 around the end of the rotary shaft 31 instead of providing the notch C and the sliding portion 33 in the valve body 32 in the damper main body 13a. The main feature is the provision of.
Here, the inclined direction of the inclined surface 57 is opposite between the side received by the bearing member 56b and the side received by the bearing member 56c in the rotary shaft 31.

  In addition, a protrusion 59 is provided on a part of the circumferential direction on an end surface of the bearing member 56b facing the bearing member 56c and an end surface of the bearing member 56c facing the bearing member 56b. And the front-end | tip of this protrusion 59 comprises the sliding part 60 guided to the inclined surface 57 of the damper main body 56a.

In the door type damper 56 configured as described above, the sliding portion 60 is guided by the inclined surface 57 by rotating the damper main body 56 a around the rotation shaft 31, and the damper main body 56 a is moved in the axial direction of the rotation shaft 31. Be displaced.
That is, the sliding portion 60 and the inclined surface 57 constitute an end cam 61 that displaces the damper main body 56a in the axial direction.

Then, by rotating the damper main body 56a in the direction in which the sliding portion 60 is directed toward the apex of the inclined surface 57, the damper main body 56a is displaced toward the bearing member 56c, and is in close contact with the inner wall surface of the flow path on the bearing member 56c side. And sealing between them is performed.
Further, by rotating the damper main body 56a in a direction in which the sliding portion 60 descends from the apex of the inclined surface 57, the damper main body 56a is displaced to the bearing member 56b side, and the damper main body 56a is moved to the flow path on the bearing member 56b side. Separated from the inner wall surface, the seal between them is released.

It is a longitudinal section showing the composition of the air harmony device concerning a first embodiment of the present invention. It is a plane sectional view of the air harmony device concerning a first embodiment of the present invention. It is the figure which looked at the air mix damper concerning 1st embodiment of this invention from the upstream of the flow path. It is a perspective view which shows the structure of the damper main body of the air mix damper concerning 1st embodiment of this invention. It is a top view which shows the structure of the door type damper concerning 2nd embodiment of this invention. It is a side view which shows the structure of the door type damper concerning 2nd embodiment of this invention. It is a perspective view which shows the structure of the door type damper concerning 3rd embodiment of this invention. It is a perspective view which shows the other structural example of the door type damper concerning 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Casing 3, S1, S2 Flow path 5 Partition plate 13 Air mix damper 13a, 26a, 27a, 41a, 51a, 56a Damper main body 26 First mode switching damper 27 Second mode switching damper 33 Sliding part 36 , 55, 61 End cam (pressing mechanism)
34a, 34b, 54, 57 Inclined surface 41, 51, 56 Door type damper

Claims (5)

By positioning the damper main body provided to be able to swing or rotate around one axis in the flow path through which the fluid flows and to move in the one axis direction at a closed position around the one axis, A door type damper for closing the flow path,
A door type damper having a pressing mechanism that presses the damper main body toward one of the uniaxial directions in a state where the damper main body is in the closed position so as to closely contact the inner wall surface of the flow path. . Either one of the damper main body and the inner wall surface on the other side in the uniaxial direction of the flow path is provided with an inclined surface that is inclined with respect to the uniaxial line along the track of the damper main body. ,
On the other hand, at least in the state where the damper main body is in the vicinity of the closed position, the slider is in contact with the inclined surface and slides on the inclined surface as the damper main body swings or rotates around the one axis. There is a moving part,
The door damper according to claim 1, wherein the inclined surface and the sliding portion constitute the pressing mechanism.   3. The door type damper according to claim 2, wherein the sliding portion is positioned at the apex of the inclined surface in a state where the damper main body is in the closed position. An air conditioner having a damper for opening and closing a flow path through which conditioned air flows,
An air conditioner using the door type damper according to any one of claims 1 to 3 as the damper. A casing and a flat partition plate that partitions the inside of the casing to form the flow path;
5. The air according to claim 4, wherein the door type damper is configured to seal between the partition plate and the damper body by bringing the damper body into close contact with the partition plate. Harmony device.

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