JPH0734280Y2 - Air blower blade drive device in air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a blowing blade drive device in an air conditioner.

(Prior Art) Generally, in an air conditioner, the blowout airflow is continuously changed within a predetermined angle range (that is, the blowout airflow (Swing control is performed), so that it is attempted to satisfy the air-conditioning request of the indoor occupants. When performing the swing control of the blowout airflow, a power transmission mechanism for transmitting the motor rotational force as the reciprocating rotary force of the blowoff blade is provided between the swing shaft of the blowoff blade and the rotation shaft of the motor that is the drive source. It is necessary to intervene, and various mechanisms have been devised conventionally. For example, as disclosed in Japanese Patent Laid-Open No. 63-194150, a motor as a drive source is installed such that the rotation axis of the motor and the swing axis of the blowing blade are parallel to each other, and Between a crank shaft connected to the swing shaft of the blade and the motor rotation shaft, a short link pivotally attached to the motor rotation shaft and a long link connecting the end of the short link to the crank shaft are provided. It is known that an intervening link mechanism is interposed.

(Problems to be Solved by the Invention) When the motor, which is the drive source, is installed such that the rotation axis thereof is parallel to the swing axis of the blowing blade as in the above-described known example, the blowing blade shakes at the motor installation location. This is not a problem if a sufficient space in the direction orthogonal to the moving axis can be secured, but a problem will occur in an air conditioner of a model in which it is desirable to reduce the space. For example, in the case of a ceiling-embedded air conditioner in which the air outlet is provided on a decorative panel that is connected to the lower surface of the air conditioner body, it is better to design the decorative panel as thin as possible. In addition, because the interior interior is also good, there is a growing demand for thinner decorative panels. However, in the case of adopting the motor installation method as described above, it goes against the above requirement, and the improvement can be straddled. Also,
For example, in the case of a 4-way blow-out type ceiling-embedded air conditioner,
The motor is usually installed at the corners of the decorative panel, while the corners of the air conditioner body are diagonally cut. Therefore, the motor installation location in the decorative panel is configured to be projected outward from the air conditioner body and exposed to the ceiling side. When such a structure is adopted, if the motor installation and power transmission mechanism described above are adopted, the short link and the long link will swing greatly in the direction orthogonal to the swing axis of the blowing blade (that is, the vertical direction). Therefore, it is necessary to secure a space that fits the swing range of these links at the joint between the air conditioner body and the decorative panel, which also impedes the thinning of the decorative panel. A problem occurs.

The present invention has been made in view of the above points, and the operating range of the motor installation location and the power transmission mechanism for transmitting the motor rotational force to the swing shaft of the blowing blade is orthogonal to the swing shaft of the blowing blade. The present invention aims to make it as small as possible in the vertical direction and to unitize it with the power transmission mechanism of the motor.

(Means for Solving the Problem) According to the invention of claim 1, as means for solving the above-mentioned problem, as shown in the drawings, the blow-off blades 12 provided at the air outlet 5 of the air conditioner are reciprocated. A driving device for moving the crankshaft is connected to the swing shaft 16 of the blowing blade 12.
14, a motor 18 installed with a rotary shaft 18a oriented in a vertical direction orthogonal to the swing shaft 16 of the blowoff blade 12, and a cam disk pivotally supported on the motor rotary shaft 18a so as to be co-rotatable in a horizontal posture. 20
And a link 22 that engages with the cam disk 20 and transmits the rotational force of the motor 18 to the crankshaft 14 as a horizontal reciprocating motion, and the motor 18 is housed and arranged in the motor case 17. Further, the motor case 17 is integrally formed with a guide portion 17b for guiding the link 22 during horizontal reciprocating operation.

In the invention of claim 2, as a means for solving the above-mentioned problems, as shown in the drawing, the opening 3 formed in the ceiling C is used.
Air comprising a main body 1 of the air conditioner installed to face the air conditioner, and a makeup panel 2 which is coupled to the lower surface of the main body 1 of the air conditioner to close the opening 3 and has an air inlet 4 and an air outlet 5. A drive device for reciprocally rotating the blowoff blade 12 provided at the air blowout port 5 of the air conditioner is used as the blowoff blade.
A coupling portion between the crankshaft 14 connected to the rocking shaft 16 of 12 and the air conditioner body 1 of the decorative panel 2 with the rotary shaft 18a directed in the vertical direction orthogonal to the rocking shaft 16 of the blowout blade 12. A motor 18 installed outside and a rotary shaft 18 of the motor 18.
It is composed of a cam board 20 pivotally supported by a in a horizontal posture so as to be co-rotatable, and a link 22 that engages with the cam board 20 and transmits the rotational force of the motor 18 to the crankshaft 14 as a horizontal reciprocating motion. At the same time, the motor 18 is housed and arranged in the motor case 17, and the motor case 17 is integrally formed with a guide portion 17b for guiding the link 22 during horizontal reciprocating operation.

According to a third aspect of the present invention, as means for solving the above-mentioned problems, as shown in the drawings, in the blowout blade drive device for an air conditioner according to the first or second aspect, the cam disc 20 and the link 20 are provided. Engagement pin protruding from the end of the
A cam groove 21 with which 23 is engaged is formed.

(Operation) According to the first aspect of the invention, the following operation is obtained by the above means.

That is, the blowing blades provided in the air outlet 5 of the air conditioner
The drive device for reciprocally rotating the 12 is provided with the blowing blades 12
The crankshaft 14 connected to the swing shaft 16 of the
A motor 18 installed with a rotary shaft 18a oriented in a vertical direction orthogonal to the swing shaft 16 of 12, a cam disk 20 pivotally supported by the rotary shaft 18a of the motor 18 so as to be co-rotatable in a horizontal posture, Cam board 20
And the link 22 for transmitting the rotational force of the motor 18 to the crankshaft 14 as a horizontal reciprocating motion by engaging with the rotational force of the motor 18 as the reciprocating power of the swing shaft 16 of the blowing blade 12. When transmitting, the link 22 is reciprocated only in the horizontal direction orthogonal to the motor rotation shaft 18a (that is, in the direction orthogonal to the swing shaft 16 of the blowoff blade 12). Further, the motor 18 is housed and arranged in the motor case 17, and the motor case 17 is integrally formed with the guide portion 17b for guiding the link 22 at the time of reciprocating operation. Swing axis 16
(Specifically, a part of the motor case 17 can also serve as a horizontal reciprocating operation guide for the link 22 when transmitting to the crankshaft 14.

According to the second aspect of the invention, the following effects can be obtained by the above means.

That is, the air conditioner main body 1 installed so as to face the opening 3 formed in the ceiling C, and the air conditioner main body 1 is connected to the lower surface of the air conditioner main body 1 so as to close the opening 3. A crank connected to a swing shaft 16 of the blowout blade 12 is provided with a drive device for reciprocally rotating the blowout blade 12 provided at the air blowout port 5 of the air conditioner including the makeup panel 2 having the outlet 5. The decorative panel 2 with the rotary shaft 18a oriented in the vertical direction orthogonal to the shaft 14 and the swing shaft 16 of the blowoff blade 12.
Of the motor 18, which is installed outside the joint with the air conditioner main body 1 in FIG. 1, a cam disk 20 pivotally supported by a rotating shaft 18a of the motor 18 in a horizontal posture so as to be co-rotatable, and the cam disk 20 In this case, the rotational force of the motor 18 is converted into a horizontal reciprocating motion, and
By configuring with the link 22 transmitting to 14,
When the rotational force of the motor 18 is transmitted as the reciprocating rotary power of the swing shaft 16 of the blowing blade 12, the link 22 moves the motor rotary shaft 18
The reciprocating operation is performed only in the horizontal direction orthogonal to a (that is, the direction orthogonal to the swing axis 16 of the blowoff blade 12). Further, the motor 18 is housed and arranged in the motor case 17, and the motor case 17 is integrally formed with the guide portion 17b for guiding the link 22 at the time of reciprocating operation. A part of the motor case 17 can also serve as a horizontal reciprocating operation guide of the link 22 when transmitting to the swing shaft 16 (specifically, the crank shaft 14).

In the device of the third aspect, the following actions can be obtained by the above means.

That is, in the blowout blade driving device of the air saturator according to claim 1 or 2, the cam disk 20 is provided with the cam groove 21 with which the engaging pin 23 projecting from the end of the link 22 is engaged. As a result, the rotational force of the motor 18 is transmitted as the reciprocating motion of the link 22 due to the engagement between the cam groove 21 and the engagement pin 23.

(Effect of the Invention) According to the invention of claim 1, a drive device for reciprocally rotating the blowing blade 12 provided at the air outlet 5 of the air conditioner is provided on the swing shaft 16 of the blowing blade 12. Connected crankshaft
14, a motor 18 installed with a rotary shaft 18a oriented in a vertical direction orthogonal to the swing shaft 16 of the blowoff blade 12, and the motor 18
A cam disk 20 which is pivotally supported in a horizontal posture on the rotary shaft 18a of the same, and a link 22 which engages with the cam disk 20 and transmits the rotational force of the motor 18 to the crankshaft 14 as a horizontal reciprocating motion. Since it is configured by, the space in the direction orthogonal to the blowing blade 12 at the installation location of the motor 18 can be suppressed small, and the rotational force of the motor 18 is transmitted as the reciprocating rotational force of the swing shaft 16 of the blowing blade 12. At the time of link
22 is reciprocated only in the horizontal direction orthogonal to the motor rotation shaft 18a (that is, in the direction orthogonal to the swing shaft 16 of the blowing blade 12), and the installation space of the motor 18 and the power transmission mechanism 19 (specifically Has a cam board 20 and a link 2
There is a practical effect that the operating space of 2) can be greatly reduced.

Further, the motor 18 is housed and arranged in the motor case 17, and a guide portion 17b for guiding the link 22 during horizontal reciprocating operation is integrally formed in the motor case 17 so that the rotational force of the motor 18 is blown out. Since a part of the motor case 17 can also serve as a horizontal reciprocating operation guide for the link 22 when transmitting to the swing shaft 16 of the blade 12 (specifically, the crankshaft 14), the motor 18 and the cam disk 20 and link 22
Can be housed and arranged in the motor case 17 in an assembled state, which can improve the accuracy of the power transmission mechanism 19 (specifically, the coupling relationship between the cam board 20 and the link 22), and manage parts and the number of assembly steps. It also has a practical effect that it greatly contributes to simplification.

According to the invention of claim 2, the opening 3 formed in the ceiling C.
Air comprising a main body 1 of the air conditioner installed to face the air conditioner, and a makeup panel 2 which is coupled to the lower surface of the main body 1 of the air conditioner to close the opening 3 and has an air inlet 4 and an air outlet 5. A drive device for reciprocally rotating the blowoff blade 12 provided at the air blowout port 5 of the air conditioner is used as the blowoff blade.
A coupling portion between the crankshaft 14 connected to the rocking shaft 16 of 12 and the air conditioner body 1 of the decorative panel 2 with the rotary shaft 18a directed in the vertical direction orthogonal to the rocking shaft 16 of the blowout blade 12. A motor 18 installed outside and a rotary shaft 18 of the motor 18.
a cam disk 20 pivotally supported in a horizontal posture in a horizontal position, and a link 22 that engages with the cam disk 20 and transmits the rotational force of the motor 18 to the crankshaft 14 as a horizontal reciprocating motion. Therefore, the space in the vertical direction orthogonal to the blow-off blades 12 at the installation location of the motor 18 can be suppressed to be small, and the rotational force of the motor 18 can be reduced by the swing shaft of the blow-off blades 12.
When transmitted as 16 reciprocating power, the link 22
Horizontal direction orthogonal to the motor rotation shaft 18a (that is, the blowing blade 1
The reciprocating operation can be performed only in the direction (2, which is orthogonal to the swing shaft 16), and the installation space for the motor 18 and the operating space for the power transmission mechanism 19 (specifically, the cam disk 20 and the link 22) are greatly reduced. Therefore, there is a practical effect that it greatly contributes to the thinning of the decorative panel 2.

Further, the motor 18 is housed and arranged in the motor case 17, and a guide portion 17b for guiding the link 22 during horizontal reciprocating operation is integrally formed in the motor case 17 so that the rotational force of the motor 18 is blown out. Since a part of the motor case 17 can also serve as a horizontal reciprocating operation guide for the link 22 when transmitting to the swing shaft 16 of the blade 12 (specifically, the crankshaft 14), the motor 18 and the cam disk 20 and link 22
Can be housed and arranged in the motor case 17 in an assembled state, which can improve the accuracy of the power transmission mechanism 19 (specifically, the coupling relationship between the cam board 20 and the link 22), and manage parts and the number of assembly steps. It also has a practical effect that it greatly contributes to simplification.

Further, when the motor 18 is installed on the ceiling-side exposed portion of the decorative panel 2 as in the ceiling-embedded air conditioner, the motor 18 is covered and protected by the motor case 17. There is also an effect that it is possible to prevent adhesion of dust and the like.

According to the invention of claim 3, in the blowing blade drive device in the air conditioner of claim 1 or 2, the cam disk 20 is provided.
, A cam groove 21 with which an engaging pin 23 protruding from the end of the link 22 is engaged is formed, and the rotational force of the motor 18 is applied to the engagement of the cam groove 21 and the engaging pin 23. Linked By 22
Since it can be transmitted as a reciprocating motion of
22 and the cam board 20 are not rigidly connected,
Even if a dimensional error occurs in the mounting position of the swing shaft 16 of the blowoff blade 12, there is a practical effect that the dimensional error can be absorbed. In addition, a plurality of types of cam boards 20 having different cam groove 21 shapes are prepared and used.
By appropriately changing the above, there is also an effect that the swing angle range of the blowoff blade 12 can be easily changed.

(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The present embodiment corresponds to the inventions of claims 1 to 3.

As shown in FIG. 4, the air conditioner of the present embodiment has an air conditioner body 1 installed above an opening 3 of an appropriate size formed in a ceiling C, and a lower surface of the air conditioner body 1. A decorative panel 2 that is abutted and coupled to cover the opening 3 and has four air outlets 5,5,5,5 formed in the decorative panel 2 for warm air or cold air. It is designed to blow W in all directions. Reference numeral 4 is an air suction port, 6 is a fan, 7 is a fan motor, 8 is an air heat exchanger, 9 is a drain pan, 10 is a suction grill disposed in the air suction port 4, 11 is an air filter, and 12 is an air blower. A blowing blade for adjusting the wind direction, which is arranged at the outlet 5, and a hanging bolt 13 for hanging the air conditioner body 1.

In the case of the present embodiment, as shown in FIG. 5, the four air outlets 5, 5 ... The blow-off blades 12, 12 ... for adjusting the wind direction of are respectively swingably supported.

And the swinging shafts 16 and 16 of the adjacent blowing blades 12 and 12 ...
Are connected via the crankshafts 14, 14, 14 except for a pair, and the corners of the decorative panel 2 which are both ends of one blowing blade 12 should be connected to the crankshafts 14, 14. Motor units 15 and 15 each having a motor 18 (see FIGS. 1 to 3) are provided. In the case of the present embodiment, the swing shaft 16 on one side of the blowing blade 12 sandwiched between the motor units 15 and 15 is rotatable with respect to the blowing blade 12, whereby the motors 18 and 18 are The interference of the driving force is avoided.

Then, referring to FIG. 1 to FIG. 3, the motor unit
The structure of 15 will be described in detail.

The motor unit 15 is a motor case with an open bottom.
The motor 18 and the power transmission mechanism 19 are housed in the housing 17, which has the following structure.

That is, the motor 18 is installed in the motor housing portion 17a of the motor case 17 with the rotating shaft 18a thereof facing vertically downward, and the rotating shaft 18a constitutes a part of the power transmission mechanism 19. A disc-shaped cam disc 20 is pivotally mounted in a horizontal posture so as to be able to rotate together. A cam groove 21 is formed on the upper surface of the cam disk 20, and the cam groove 21 is provided at a lower end of a link 22 that is engaged with the crankshaft 14 at one end thereof. The dowel pin 23 is engaged. Reference numeral 24 is an engaging recess formed to engage the crankshaft 15 with one end of the link 22. Therefore, the rotational force of the motor 18 is converted into a horizontal reciprocating motion of the link 22 via the cam groove 21 of the cam plate 20, and then transmitted as a force for reciprocally rotating the crankshaft 15. In other words, in this embodiment, the cam board
The power transmission mechanism 19 is composed of 20 and the link 22.

Further, the motor case 17 is formed with a guide portion 17b for guiding the link 22 so as to be able to move back and forth. That is, in the case of the present embodiment, the motor 18 is housed in the motor case 17 together with the power transmission mechanism 19 and is unitized.

Reference numeral 25 is a groove for inserting the crankshaft formed on both sides of the guide portion 17b of the motor case 17, 26 is a screw for attaching the motor 18 to the motor case 17, 27 is a cam plate 20 fixed to the motor rotating shaft 18a. A screw for preventing rotation, 28 is a lead wire.

With the above configuration, the space in the vertical direction orthogonal to the blowoff blades 12 at the motor installation location can be suppressed to a small level, and the rotational force of the motor 18 can be reduced by the forward rotation power of the swing shaft 16 of the blowoff blades 12. When the transmission is performed, the link 22 is reciprocated only in the horizontal direction orthogonal to the motor rotation shaft 18a (that is, the direction orthogonal to the swing shaft 16 of the blowing blade 12), and the motor installation space and the power transmission mechanism. The operating space of 19 can be greatly reduced, which contributes greatly to the thinning of the decorative panel 2. Further, even if the motor 18 is to be positioned outside the air conditioner main body 1, since it is housed in the motor case 17, adhesion of dust and the like is prevented. Further, as in the power transmission mechanism 19 of the present embodiment, when the cam disk 20, the link 22 and the crankshaft 14 are configured to be connected in an engaging relationship,
As shown in the drawing, even if the engagement positional relationship between the crankshaft 14 and the engaging recess 24 of the link 22 is slightly displaced vertically, the displacement can be absorbed, and the swing angle of the blowing blade 12 can be kept constant. It becomes possible to hold.

In the above description, the ceiling-embedded air conditioner is taken as an example, but the present invention is also applicable to other types of air conditioners.

The present invention is not limited to the configuration of the above-mentioned embodiment, and it goes without saying that the design can be appropriately changed without departing from the scope of the invention.

[Brief description of drawings]

1 is an exploded perspective view of a motor unit in an air conditioner according to an embodiment of the present invention, FIG. 2 is a bottom view of the motor unit shown in FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. 4 is a vertical sectional view of an air conditioner according to an embodiment of the present invention, and FIG. 5 is a top view of a decorative panel in the air conditioner shown in FIG. 1 ... Air conditioner main body 2 ... Decorative panel 3 ... Opening part 4 ... Air inlet 5 ... Air outlet 12 ... Blow-off vane 14 ... Crank shaft 16 ... Oscillating shaft 17 ... Motor case 17b …… Guide section 18 …… Motor 18a …… Rotating shaft 20 …… Cam disk 21 …… Cam groove 22 …… Link 23 …… Engaging pin C …… Ceiling

Claims (3)

[Scope of utility model registration request] 1. A drive device for reciprocally rotating an outlet blade (12) provided at an air outlet (5) of an air conditioner, the swing shaft (16) of the outlet blade (12). To the crankshaft (14) and the swing shaft (1) of the blowoff blade (12).
6) A motor (18) installed with its rotary shaft (18a) oriented in the vertical direction orthogonal to 6), and a cam disk (20) pivotally supported on the motor rotary shaft (18a) so as to be co-rotatable in a horizontal posture. A link (2) which engages with the cam disk (20) and transmits the rotational force of the motor (18) to the crankshaft (14) as a horizontal reciprocating motion.
2) and a motor case (1
7) The motor case (17) is housed and placed inside
A blower blade drive device in an air conditioner, wherein a guide portion (17b) for guiding the link (22) during horizontal reciprocating operation is integrally formed therewith. 2. An air conditioner main body (1) installed to face an opening (3) formed in a ceiling (C), and the opening (3) on a lower surface of the air conditioner main body (1). Reciprocating a blow-off blade (12) provided in the air outlet (5) of the air conditioner, which is connected to be closed and is composed of a decorative panel (2) having an air inlet (4) and an air outlet (5). A drive device for rotating the crankshaft (14) connected to the swing shaft (16) of the blowoff blade (12) and the swing shaft (16) of the blowoff blade (12). Vertical axis of rotation (18
The motor (18) installed outside the joint of the decorative panel (2) with the air conditioner body (1) facing a)
And a cam disk (20) pivotally supported in a horizontal posture on the rotary shaft (18a) of the motor (18) so as to rotate together, and a rotational force of the motor (18) engaged with the cam disk (20). A link (22) for transmitting the horizontal reciprocating motion to the crankshaft (14),
The motor (18) is housed and arranged in the motor case (17), and the motor case (17) has a guide portion (17b) for guiding the link (22) during horizontal reciprocating operation.
A blower blade drive device in an air conditioner, wherein the blower blade drive device is formed integrally. 3. The cam disc (20) includes the link (22).
2. A cam groove (21) with which an engaging pin (23) projecting from the end of the cam is engaged.
Alternatively, the blowing blade drive device in the air conditioner according to the item 2.