JPH0320676Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an integrated air conditioner in which an indoor unit and an outdoor unit are integrally constructed, such as a window or wall type. This invention relates to an improvement in a ventilation system that selectively communicates between external units to exhaust or intake air.

[Conventional technology]

Conventionally, an integrated air conditioner has an indoor unit and an outdoor unit that make up the air conditioner, and is installed by being fitted into an opening in a window or wall. It has been known. Such an integrated air conditioner will be briefly explained using FIG. 7 to which the present invention is applied.
Reference numeral 1 denotes an integrated air conditioner body having a substantially housing shape; 2 denotes a front panel that closes the front opening;
Further, on the base 3 accommodated in the internal space, each component constituting the indoor unit 5 and the outdoor unit 6 is assembled while being partitioned by a partition plate 4. In the figure, 5a is a cooler constituting the indoor unit 5, and 6a and 6b are a condenser and a compressor constituting the outdoor unit 6, and these are connected by a refrigerant pipe (not shown). Also, 7
2 is an outdoor air blower disposed on the outdoor unit 6 side, and 2a and 2b are an inlet and an outlet provided on the front panel 2. Of course, although not shown, the indoor unit 5 includes a casing 8.
An indoor blower is installed inside, and the above-mentioned suction port 2
It is configured so that indoor air can be sucked in from the outlet 2b and cooled or heated air can be blown out from the outlet 2b.

By the way, in the above-mentioned integrated air conditioner, a part of the partition plate 4 that partitions the indoor unit 5 and the outdoor unit 6 is usually provided with an air circulation opening (not shown). A damper that opens and closes is installed as a ventilation device, and this damper plays the role of exhausting air from the indoor side to the outdoor side and sucking air from the outdoor side into the indoor side.
And, as the ventilation system for the air conditioner mentioned above,
Conventionally, as shown in Utility Model Application No. 54-154550, for example, a structure has been adopted in which a cable wire or the like connected to a damper is used, and the damper is opened and closed by operating a lever or the like provided at the other end of the wire. He had been hired.

[Problem that the invention attempts to solve]

However, in the conventional device using cable wires, etc., as described above, the operation section on the front panel 2 side and the ventilation damper provided on the internal partition plate 4 are arranged with a considerable distance, which makes installation difficult. Moreover, it is necessary to attach complicated wire supports and supporting shaft members, which increases the number of component parts, complicates assembly work, and tends to cause play in the wire, which is not desirable in terms of mass production. However, the damper tends to elongate due to long-term use, and the damper cannot be opened and closed reliably. In particular, for this type of ventilation system, it is desired that the configuration is simple, that the damper can be opened and closed reliably, and that the damper can be operated appropriately and reliably, so some measures must be taken. It is hoped that

The present invention has been developed in view of the above-mentioned circumstances, and has a simple structure with a small number of parts and excellent ease of assembly, which greatly improves the operating feeling when opening and closing the ventilation damper, and ensures reliable opening and closing operations. The object of the present invention is to provide an inexpensive ventilation device for an air conditioner that allows the operator to easily check whether the ventilation damper is open or closed.

[Means for solving problems]

According to the ventilation device for an air conditioner according to the present invention,
an opening lever that is slidably supported in the longitudinal direction within the air conditioner body so as to open the damper for opening and closing the air flow opening, and whose outer end extends through the front panel of the air conditioner body and faces the outside; , a closing lever that is slidably supported within the air conditioner main body in parallel with the opening lever, and whose outer end passes through the front panel and faces outside alongside the opening lever side; a connecting member that is spanned between the inner end and the opening lever and whose central portion is pivotally supported on the fixed side to move both levers in opposite directions; and a connecting member that moves both levers in opposite directions from the central portion of the connecting member. a spring member interposed between the locking piece protruding from the locking piece and the locking piece on the fixed part side and moving the opening lever forward and backward toward the damper side via the connecting member, the connecting member of the spring member; When the locking position on the side is crossed by a line extending in the longitudinal direction of the lever from the rotation fulcrum of the connecting member toward the locking piece on the fixed part side, a biasing force is applied to the connecting member in the opposite direction. It is configured to give .

[Effect]

According to the present invention, since a pair of open and close levers are used as the damper levers for opening and closing the damper, the damper can be reliably opened and closed by simple and appropriate operation, and both By selectively setting the locking fulcrum of the spring member interposed between the connecting member that operates the lever and the fixed side, a biasing force is applied to both levers in an appropriate direction via the connecting member. It is something that can be done.

〔Example〕

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

1A and 1B to FIG. 7 show an embodiment of the ventilation system for an air conditioner according to the present invention, and the explanation of FIG. 7 described above will be omitted.

In these figures, indoor and outdoor units 5 and 6 are shown.
The ventilation system of an air conditioner uses a damper plate 11 to control the opening and closing of an air flow opening 10 (see FIG. 6) provided in a partition plate 4 (actually, the casing 8) made of a heat insulating material or the like that defines a space between the An electrical component mounting plate 12 having a substantially X-shape attached to one side of the indoor unit 5 in the harmonizer main body 1 is slidably supported in the longitudinal direction along the inner surface of the side surface 12a, and its inner end 13a is supported. An opening lever 13 that opens by pressing the damper plate 11 integrally connected to the outdoor unit 6 side, and an opening lever 13 that slides along the inner surface of the mounting plate side part 12a parallel to this opening lever 13. A support shaft is attached to the freely supported closing lever 14 and the side surface 12a of the mounting plate, which is spanned between the inner end 14a of the closing lever 14 and the opening lever 13, and whose central portion is the fixed side. a connecting member 16 that is pivotally supported via a screw 15 to move the levers 13 and 14 in opposite directions; and a damper plate that applies an urging force to the connecting member 16 to move the opening lever 13. The damper plate 11 is configured by a spring member 17 as a torsion spring that moves forward and backward toward the damper plate 11 and maintains the open/closed state of the damper plate 11. The outer ends (operating ends 13b, 14b) of the above-mentioned pair of opening and closing levers 13, 14 are connected to the front panel 2 (actually, the mounting plate 12) of the air conditioner main body 1, respectively.
They are arranged so as to protrude to the outside from operation ports 19a and 19b provided in the cover 18) on the front side 12b.

This embodiment shows a case where the damper plate 11 described above and the opening lever 13 for opening and closing the damper plate 11 are constructed separately, and in this case, the damper plate 11 is screwed to the partition plate 4 side. It is always biased in the closing direction by a damper spring 20 in the shape of a leaf spring. Also, a lever portion 1 protruding forward from this damper plate 11 is provided.
1a is the casing 8 as shown in FIG.
It is slidable by a tongue piece 21 cut and raised on the side surface portion 4a of the side partition plate and a recess formed in the bent portion 22a of the electrical component cover 22 disposed behind the electrical component mounting plate 12. The inner end 13a of the opening lever 13 moves forward and backward at the tip of the lever portion 11a, thereby moving the damper plate 11 in the opening direction against the biasing force of the spring 20 when engaged. When they are separated, they are moved in the closing direction by the biasing force of the spring 20, thereby closing the air flow opening 10. Here, in FIG. 3, 11b is an engagement pin protruding from the back side of the damper plate 11, and 20a is an engagement hole of the damper spring 20 into which this engagement pin 11b is engaged.

Furthermore, in FIG. 6, 23 is a fixed side blower, 24 is a drive motor for driving this indoor side blower 23 and the outdoor side blower 7, and a part of the air sucked in from the room is caused by the function of this indoor side blower 23. When the air flow opening 10 is opened, the air is sent into the outdoor unit 6 and sucked in by the outdoor fan 7, thereby performing an exhaust operation.

Further, the open lever 13 and the close lever 14, which form a pair as damper levers, are connected by a connecting member 16 and are configured to operate in conjunction, as shown in FIGS. 1a and 1b and also in FIG. 3. There is. To explain this in detail, these levers 13 and 14 are
As shown in the figure, the inner ends thereof are bent to be spaced apart from each other, and the tips of the bent portions 13c and 14c are further bent to extend rearward. . Engagement protrusions 30a and 30b are protruded from the spaced apart portions, respectively, and the mounting plate side surface 1, which is the fixed side, is provided between the levers 13 and 14.
At both ends of the connecting member 16, which is rotatably supported by being screwed into a screw hole 15a drilled in the screw hole 15a, there are engaging holes 31a and 31b into which the above-mentioned engaging protrusions 30a and 30b are inserted. As a result, both levers 13 and 14 are configured to be operated in conjunction with each other. Here, the above-mentioned engagement holes 31a and 31b are formed to have a long groove shape as shown in the figure, but this is because each lever 1
This is to enable smooth relative movement of parts 3 and 14, and to absorb formation errors, etc. between each member.

Now, according to the present invention, in the ventilation system for an air conditioner having the above-mentioned configuration, the connecting member 16 for interlockingly operating the opening and closing levers 13 and 14 for controlling the opening and closing of the damper is provided at the center of the connecting member 16. A locking piece 32 protruding laterally from the part and a locking piece 33 provided on the side surface part 12a of the mounting plate on the fixed part side.
A spring member 17 is interposed between the connecting member 16 and the opening lever 13 to advance and retract toward the damper side through the connecting member 16. Locking position (movable side locking fulcrum C by locking piece 32)
The lever crosses over a line segment (indicated by a in the figure) extending in the longitudinal direction of the lever from the rotation fulcrum A by the screw 15 of the connecting member 16 to the fixed side locking fulcrum B by the fixed side locking piece 33. Accordingly, it is characterized in that it is configured to apply a biasing force in the opposite direction to the connecting member 16. In the figure, 17a is one end of the spring member 17 for the locking piece 32 which becomes the movable side locking fulcrum C, and 17b is formed by cutting out a part of the mounting plate side surface 12a which becomes the fixed side locking fulcrum B. At the other end of the spring member 17 with respect to the spring locking piece 33, such a spring member 1
The structure is such that the damper plate 11 is switched to the open or closed position by the urging force applied to the connecting member 16 by the damper plate 7, and is maintained in that state.

In other words, according to this embodiment, as is clear from FIGS.
is formed by being shifted upward in the figure by a distance x from a line a extending along the longitudinal direction of the lever from the pivot point A of the connecting member 16, and as a result, when the damper is in the open state, As shown in FIGS. 1a and 2a, a vector force α proportional to the distance y rotates the connecting member 16 clockwise in the figure in a direction that maintains this open state with respect to the movable fulcrum C. It is biased in the direction of movement. On the other hand, in the closed state, as shown in FIG. 1b and FIG.
6 in the direction counterclockwise in the figure. According to such a configuration, since the fixed side fulcrum B is shifted by x, the magnitudes of both vector forces α and β are different, so that when operating the levers 13 and 14, The required operating force will be different. This is because when the damper plate 11 is opened by pressing the opening lever 13 mentioned above, a force is required to resist the biasing force of the damper spring 20 acting on the damper plate 11. During operation, the damper spring 2 mentioned above
Since the biasing force of 0 acts in the direction to assist the operation, and as a result, the operating forces of both levers 13 and 14 become unbalanced, this unbalanced state is resolved by the difference in vector force due to the above-mentioned shift amount x. This makes it possible.

In other words, in order to balance the pressing force and return force of the opening and closing levers 13 and 14, the above-mentioned fulcrum B is shifted from the line segment a by x.

Here, in this embodiment, the fixed side spring locking piece 33 that locks the other end 17b of the spring member 17 described above can be used to hold the side part of the spring member 17 during the opening operation shown in FIG. The other end 17b of the spring member 17, which is engaged with the spring engagement piece 33, is shaped like a crank. By adopting such a configuration, problems such as the spring member 17 coming off can be prevented, and smooth spring operation can be ensured, regardless of repeated lever operations. Even during assembly, the spring member 17 is difficult to come off, so it is possible to achieve advantages such as excellent workability. That is, as described above, by forming the other end 17b of the spring member 17 in a crank shape, it is possible to prevent the spring member 17 from coming off from the fixed side locking piece 33, and the locking piece 33, which becomes the spring support portion, is formed at an angle. By doing so, it is possible to solve the problem of the side portions of the spring member 17 coming into contact with each other during movement, resulting in falling off, malfunction, etc.

In addition, in this embodiment, the above-mentioned opening and closing lever 1
3, 14, the bent portions 13c, 14c
In order to be able to mutually grip the parts that are close to each other in front of the opening lever 13, the gripping part 34 having a substantially L-shape is connected to the other closing lever 1 from the side of the opening lever 13.
The opening lever 13 of this closing lever 14 extends to the 4 side.
By holding and gripping the surface opposite to the sliding surface, the two can be assembled integrally in a state where they can slide relative to each other.
Also, the one indicated by 35 in FIG. 1 is the lever 13,
The protrusion provided on the sliding surface between the levers 14 allows the sliding movement when operating these levers to be performed smoothly with minimal frictional force. Of course, it will be obvious that such a protrusion may be provided on the inner surface of the grip portion 34 that is in contact with the closing lever 14.

Further, in the embodiment described above, flange-shaped stopper pieces 36a, 36b are provided near the operating ends 13b, 14b of the opening and closing levers 13, 14, and stopper pieces projecting laterally at the bent portions 13c, 14c. 37a, 37b are integrally formed, and these stopper pieces 36a, 36b, 37a, 37
As shown in FIGS. 1a and 1b, the inner surface of the cover 18 attached to the front surface portion 12b of the mounting plate and the stepped portion 38 formed by bending the side surface portion 12a of the mounting plate are alternately formed. It is configured so that they are in contact with each other. Then, while ensuring appropriate and reliable operation strokes of each lever 13, 14,
The sound generated when both stopper pieces collide with each surface formed of sheet metal material can be used as a notch sound.

According to the ventilation device according to the present invention having the above configuration, as shown in FIGS. 1a and 1b, the opening lever 13
By pressing the lever 13, the damper plate 11 can be moved toward the outdoor unit 6 against the biasing force of the unit spring 20, and the air flow opening 10 can be opened. This allows air to be exhausted outdoors. At this time, the operating end 14b of the closing lever 14 remains protruding to the outside, while the amount of protrusion of the opening lever 13 is smaller than this, so the operator can easily check this from the outside and operate the damper. It is possible to grasp the open/closed state. Furthermore, when the closing lever 14 is pressed, the opening lever 13 moves toward the indoor unit 5 side, that is, the front side of the air conditioner body 1 due to the action of the connecting member 16, and thereby moves away from the damper plate 11. The damper cable 1 is actuated to close the air circulation opening 10 by the biasing force of the damper spring 20, and it becomes possible to obtain the closed state of the damper.

Further, according to the above-described configuration, the open lever 13 and the close lever 14 are used to open and close the damper, and the levers 13 and 14 are linked and switched in opposite directions by the connecting member 16. This improves the operation feeling when opening and closing the ventilation damper, and ensures a reliable and reliable damper opening/closing state.Furthermore, the operator can easily check the damper's open/closed state. It has the advantage of being possible.

Furthermore, in this embodiment, a case has been described in which the operating ends 13b and 14b of the open lever 13 and the close lever 14 are arranged side by side in the upward and downward directions and protrude on the front panel 2 of the air conditioner main body 1. However, the present invention is not limited to this, and modifications such as arranging them side by side in the left and right directions are also possible. In this case, it is preferable to bend the tip of one of the levers into an L-shape, and to protrude the operating end at a position parallel to the other lever in the horizontal direction.

Note that the present invention is not limited to the structure of the embodiment described above, and the shape, structure, etc. of each part may be modified and changed as appropriate. For example, as shown in FIGS. 8a, b and 9a, b, the spring member 17
The movable side locking fulcrum E position to the connecting member 16 side of
The connecting member 16 is provided on the locking piece 32 at a distance l from its center line, and the fixed side locking fulcrum D of the spring member 17 is positioned on a line segment a from the rotation fulcrum A. However, it is possible to achieve the same effects as the above-mentioned embodiment. In this case, it will be easily understood that when the damper is open, a vector force γ is proportional to the distance m, and when the damper is closed, a vector force δ, which is smaller than this and in the opposite direction, is proportional to the distance n.

Furthermore, in each of the above-mentioned embodiments, a case has been described in which the ventilation device according to the present invention is applied to open and close the exhaust side of an air conditioner, but the present invention is not limited to this, and It is clear that the present invention may be used as an air conditioner, and is not intended to limit the type of air conditioner.

[Effect of idea]

As explained above, according to the ventilation device for an air conditioner according to the present invention, the opening lever is slidably supported within the air conditioner body so as to open the damper for opening and closing the air flow opening; A close lever is slidably supported within the air conditioner main body in parallel with this open lever, and a close lever is spanned between the inner end of this close lever and the open lever, and its center portion is on the fixed side. Interposed between a connecting member that moves both levers in opposite directions by being pivoted, a locking piece protruding laterally from the center of this connecting member, and a locking piece on the fixed part side. and a spring member that moves the opening lever forward and backward toward the damper side via the connecting member, and the locking position of the spring member on the connecting member side is from the rotation fulcrum of the connecting member to the locking piece on the fixed part side. By passing over the line segment extending in the longitudinal direction of the lever toward the lever, a biasing force in the opposite direction is applied to the connecting member. Since a pair of open and close levers are used as the damper levers to be operated, the damper can be reliably opened and closed with simple and appropriate operation. By selectively setting the locking fulcrum of the spring member interposed between the It has various excellent practical effects, such as being able to switch to the desired position by simple and appropriate operations and maintain that state.

[Brief explanation of the drawing]

Figures 1a and b are side sectional views of essential parts of an embodiment of the ventilation system for an air conditioner according to the present invention, with the damper in the open and closed states, and Figures 2a and b are biasing forces of the spring members. Vector diagram showing the power relationship by
The figure is an exploded perspective view of the main parts, FIG. 4 is a schematic perspective view of the ventilation damper part, FIG. 5 is a schematic perspective view showing the fixed side locking part of the spring member, and FIG. 6 is the indoor unit and FIG. 7 is an exploded perspective view showing a schematic configuration of an air conditioner to which the present invention is applied; FIGS. 8 a, b and 9 a, b show another embodiment of the present invention. FIG. 2 is a side sectional view and a vector diagram of main parts shown in FIG. 1...Air conditioner body, 2...Front panel, 4
... Partition plate, 5, 6 ... Indoor/outside unit, 10
... Air flow port, 11 ... Damper plate, 12
...Electrical component mounting plate, 13...Opening lever, 13b
... operating end, 14... closing lever, 14b... operating end, 15... screw (support shaft), 16... connecting member,
17... Spring member, 20... Damper spring, 32... Connecting member side locking piece, 33... Fixed side spring locking piece, A... Rotating fulcrum, B, D... Fixed side locking fulcrum, C, E...Movable side locking fulcrum, a...
line segment.

Claims (1)

[Scope of utility model registration request] A damper for controlling the opening and closing of an air flow opening provided between the indoor and outdoor units is supported slidably in the longitudinal direction within the air conditioner body so as to open the damper, and the outer end thereof is connected to the front panel of the air conditioner body. an opening lever that passes through the front panel and faces the outside; and an opening lever that is slidably supported within the air conditioner main body parallel to the opening lever, and whose outer end passes through the front panel and faces the opening lever side. The closing levers are arranged side by side and facing the outside, and the levers are spanned between the inner end of the closing lever and the opening lever, and the center portion thereof is pivoted to the fixed side, so that the levers can be rotated in opposite directions. The opening is interposed between a connecting member to be moved in the direction, a locking piece projecting laterally from the center of the connecting member, and a locking piece provided on the fixed part side. a spring member that moves the lever forward and backward toward the damper, and the locking position of the spring member on the connecting member side is in the lever longitudinal direction from the rotation fulcrum of the connecting member toward the locking piece on the fixed part side. A ventilation device for an air conditioner, characterized in that the ventilation device is configured to apply a biasing force in the opposite direction to the connecting member by riding over the extended line segment.