JP2000121094A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectually achieve heat exchange by sucking warm air staying near a ceiling from a suction inlet upon heating operation by improving suction capability for air sucked from a suction inlet upon starting of cooling or heating operation, and preventing blowoff air from a blowoff outlet from being short- circuited and hence sucked into the suction inlet. SOLUTION: The present air conditioner is adapted such that it includes opening and closing structures 7, 8 composed of a decorative plate halved up and down and movable vertically provided on a front portion of the front surface suction hole 2, and it is moved oppositely up and down with a driving apparatus composed of a driving section for driving the structures and an engagement section. Upon starting of cooling and heating operations the front surface suction hole is greatly opened to increase the amount of suction air, and blowoff air from the blowoff outlet 3 is prevented from being short-circuited to the front surface suction hole with the aid of the lower opening and closing structure. Upon ordinary operation the front surface suction hole is opened slightly with the upper and lower opening and closing structures to reduce the amount of suction air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an air conditioner, particularly when a cooling or heating operation is started, in which the suction capacity of the suction air sucked from the suction port is improved, and Short circuit to prevent it from being sucked into the suction port, during heating operation,
The present invention relates to a structure in which warm air staying near a ceiling is sucked through a suction port so that heat can be efficiently exchanged.

[0002]

2. Description of the Related Art A conventional air conditioner in which a suction port provided on a front surface of a main body can be opened and closed to improve a suction capacity of suction air is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 8-29667. Such cases are known. In this case, for example, as shown in FIG. 4, “the first suction unit 2 is arranged at the center in the vertical direction of a large curved surface formed at the front center, and the moving panels 7 and 8 (book According to this embodiment, the moving panels 7, 8 (the upper and lower opening members 7, 8) are thinned and moved. The volume can be reduced, and the space between the first suction section 2 (on the front face of the main body) and the second suction section 2 (on the top face of the main body) is reduced so that the first and second suction ports (these) are formed. The room air sucked from the section 2 can be sucked uniformly and efficiently through the heat exchanger. "

However, the thinned moving panels 7 and 8 (upper and lower opening / closing members 7 and 8) are easily deformed by bending, and the moving panels 7 and 8 (upper and lower opening and closing members 7 and 8) are attached to the front of the main body. Because it is arranged at the rear (inside), there is a problem that the air blown out from the outlet 3 is short-circuited along the front surface of the main body and is easily sucked into the inlet. For example, by disposing the moving panels 7 and 8 (upper and lower opening and closing members 7 and 8) at the front portion (outside) of the front surface of the main body, the moving panels 7 and 8 are formed in a shape that can prevent the short circuit or have a strength. In addition, there has been a demand for an air conditioner having, for example, a design made of a decorative plate that moves up and down so as to have a characteristic in design.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, in the present invention, particularly at the start of a cooling or heating operation, the suction capacity of the suction air sucked from the suction port is improved, and the air blown out of the air outlet is short-circuited. Circuit to prevent it from being sucked into the suction port, during heating operation,
It is an object of the present invention to provide an air conditioner in which warm air staying near a ceiling is sucked from a suction port so that heat can be efficiently exchanged.

[0005]

According to the present invention, to solve the above-mentioned problems, a suction port is provided at a vertically central portion and an upper surface portion of a front surface of a main body, and an air outlet is provided at a lower portion of the front surface.
In an air conditioner in which a heat exchanger and a blower fan are provided in an air passage connecting the suction port and the air outlet, the suction port on the front surface is provided at the front of the air conditioner so as to be vertically divided into two parts. A drive device that is opened and closed by an opening / closing body made of a decorative plate that is provided to drive the opening / closing body,
A drive unit comprising a drive motor, a rod connected to the drive shaft of the drive motor, and having a pair of drive gears at both ends;
A pair of first arms which are provided with a first tooth portion meshing with the driving gear and move up and down while being locked to the upper opening / closing body, and a second tooth portion meshing with the driving gear is provided at a base end portion. It moves up and down in parallel with the first arm, and a pair of linking arms each having a third tooth portion at the distal end, and a fourth tooth portion that is locked to the lower opening / closing body and faces the third tooth portion. A driving shaft of the drive motor, comprising a pair of second arms provided and a linking portion comprising two intermediate gears meshed with each other with the third tooth portion and the fourth tooth portion, respectively. And the rotation of the drive gear,
While converting the first arm provided with the first tooth portion into vertical movement, the base arm converts the second tooth portion into a vertical movement of the linkage arm provided with the third tooth portion at the distal end. The upper opening / closing body which is converted into a vertical movement of the second arm by the intermediate gear meshed with the third tooth portion and the fourth tooth portion, respectively, and is locked to the first arm and the second arm, respectively. And the lower opening and closing body is moved up and down in the opposite direction to open and close the suction port on the front face, and when the cooling or heating operation is started, the suction port on the front face is greatly opened by the upper and lower opening and closing body. In addition to increasing the amount of suction air, the lower opening / closing member located above the outlet prevents the air blown out of the outlet 3 from being directly sucked into the suction port on the front surface, and during normal operation. The upper and lower opening and closing body Serial open reduce the suction port of the front,
Alternatively, the intake air is closed to reduce the amount of intake air.

A ridge is formed at the lower end of the lower opening / closing body and protrudes forward corresponding to the air outlet to prevent the air blown from the air outlet from being short-circuited and sucked into the air inlet. Are formed continuously.

Further, the driving motor is a stepping motor.

Further, a first locking portion for locking the first arm to the upper opening / closing body is formed continuously on upper and lower back sides of the upper opening / closing body corresponding to both ends of the first arm. A second locking portion, comprising a first locking claw having a substantially L-shaped cross section, for locking the second arm to the lower opening / closing body, corresponds to both ends of the second arm. A second locking claw having a substantially L-shaped cross section is formed continuously on the upper and lower back sides, and the first locking claw and the second locking claw are engaged with both ends of the first arm and the second arm. It is configured to stop.

Further, the first locking claw is formed continuously in the longitudinal direction of the upper and lower back sides of the upper opening and closing body, and the second locking claw is formed in the upper and lower back sides of the lower opening and closing body in the longitudinal direction. Is formed continuously.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. 1 (A) and 1 (B), FIGS. 2 (A) and 2 (B), and FIGS. 3 (A) and 3 (B), 1 is an air conditioner body, and 2 is the same. Suction ports 3 are provided at the center and the upper surface of the front surface of the main body 1. Reference numeral 3 denotes an air outlet provided at a lower portion of the front surface so as to rotatably support a wind direction changing plate 6. Reference numeral 4 denotes a suction port 2 and an air outlet 3. And a heat exchanger 5 provided in an air passage connecting the air passage and the air blower provided in the air passage.

The front-side suction port 2 is vertically divided into two parts at the front thereof, and is opened and closed by opening and closing members 7, 8 formed of a decorative plate which moves up and down. 3 (A) and FIG.
As shown in (B), a driving unit including a driving motor 9;
A rod 11 connected to the drive shaft of the drive motor 9 and having a pair of drive gears 10 provided at both ends thereof, and a first tooth portion 12a meshed with the drive gear 10 are provided. A pair of first arms 12 that move up and down, and a second tooth portion 13a that meshes with the drive gear 10 at the base end. A pair of linking arms 13 having a tooth portion 13b, a pair of second arms 14 having a fourth tooth portion 14a which is locked to the lower opening / closing body 8 and faces the third tooth portion 13b; A linking portion, which meshes with the three-tooth portion 13b and the fourth-tooth portion 14a, respectively, and includes two intermediate gears 15 meshed with each other, and serves to drive the drive shaft of the drive motor 9 and the rotation of the drive gear 10. The first tooth portion 12a is converted into a vertical movement of the first arm 12 while the second tooth portion 13a is provided at the base end and the third tooth is provided at the tip end. Part 13b is converted into vertical movement of the linking arm 13 provided with each, and the intermediate gear 15 meshed with the third tooth part 13b and the fourth tooth part 14a is converted into vertical movement of the second arm 14. Then, the upper opening / closing body 7 and the lower opening / closing body 8 locked to the first arm 12 and the second arm 14, respectively, are moved up and down in opposite directions to open and close the suction port 2 on the front surface. At the start of the cooling or heating operation, as shown in FIGS.
The opening of the front opening 2 is greatly opened to increase the amount of suction air, and the lower opening / closing body 8 located above the outlet 2 allows the air blown out of the outlet 3 to flow through the inlet 2 of the front. To prevent it from being sucked directly into the
At the time of normal operation, as shown in FIGS.
Is opened or closed to reduce the amount of intake air, thereby improving the suction capacity of the intake air sucked from the intake port 2, particularly at the start of cooling or heating operation. In order to quickly perform air conditioning, or by providing the upper and lower opening and closing members 7 and 8 at the front (outside) of the suction port 2 on the front surface, the air blown from the air outlet 3 is short-circuited. Or a structure in which the heat can be prevented from being sucked into the suction port 2, or the warm air retained near the ceiling can be effectively sucked through the suction port 2 on the upper surface during the heating operation so that heat can be efficiently exchanged. Become.

At the lower end of the lower opening / closing body 8, it protrudes forward corresponding to the air outlet 3, so that the air blown out from the air outlet 3 is short-circuited and is prevented from being sucked into the air inlet 2. The ridges 8b are formed continuously so that the air blown out from the outlet 3 can be more effectively prevented from being short-circuited and sucked into the inlet 2. . In addition, since the ridge 8b is formed continuously at the lower end of the lower opening / closing body 8, the design of the front surface of the main body 1 can be characterized, and the air blown from the outlet 3 is not short-circuited. Can be clearly recognized, and the structure of the product can be clearly appealed to the user.

The driving motor 9 is a stepping motor, so that the driving shaft of the stepping motor can be accurately rotated by a predetermined rotation angle by clockwise or counterclockwise rotation. 3 (A) and 3 (B), the upper and lower opening / closing plates 7 and 8 are respectively moved up and down by the rotation of the drive shaft, so that the suction port 2 on the front surface is closed. The structure is such that the opening area can be increased. Note that the drive shaft is the same as that shown in FIG.
3 (A) and FIG. 3 (B), the upper and lower opening / closing plates 7 and 8 are moved up and down in opposite directions to reduce the opening area of the suction port 2 on the front surface. It becomes possible to reduce the size, or the intake port 2 can be closed, for example, during the heating operation, as described above,
The structure is such that warm air staying in the vicinity of the ceiling is sucked through the suction port 2 on the upper surface so that heat can be efficiently exchanged.

The first opening / closing plate 7 has the first arm
A first locking claw having a substantially L-shaped cross section is formed continuously on upper and lower back sides of the upper opening / closing plate 7 corresponding to both ends of the first arm 12. 7a, a second locking portion for locking the second arm 14 to the lower opening / closing plate 8 is continuous with upper and lower back sides of the lower opening / closing plate 8 corresponding to both ends of the second arm 14. The formed second locking claw having a substantially L-shaped cross section
8a, the first locking claw 7a and the second locking claw 8a are configured to be locked to both ends of the first arm 12 and the second arm 14. As shown in FIG. 3 (B), the first arm 12 is used for the upper opening / closing plate 7, the second arm 14 is used for the lower opening / closing plate 8, and the elasticity of the upper opening / closing plate 7 and the lower opening / closing plate 8 is utilized. Thus, the structure can be easily and accurately locked.

Further, the first locking claw 7a is formed continuously over the upper and lower back sides of the upper opening and closing plate 7 in the longitudinal direction,
The second locking claw 8a is configured to be continuously formed in the longitudinal direction on the upper and lower back sides of the lower opening / closing plate 8,
Thereby, the structure is such that the strength of the upper opening / closing plate 7 and the lower opening / closing plate 8 can be enhanced.

With the above structure, FIGS. 1A and 1
(B), FIG. 2 (A) and FIG. 2 (B), and FIG. 3 (A)
As shown in FIG. 3B and FIG.
Is provided at the front part thereof and is divided into upper and lower parts, and is opened and closed by opening and closing bodies 7 and 8 formed of a decorative plate that moves up and down. From the driving unit and the linking unit for driving the opening and closing bodies 7 and 8, The drive motor 9 is provided.
The rotation of the drive shaft and the drive gear 10 of the first tooth portion 12a
Is converted into vertical movement of the first arm 12 provided with a second tooth portion 13a at the base end and the third arm portion 13b at the distal end. At the same time, the intermediate gear 15 meshed with the third tooth portion 13b and the fourth tooth portion 14a respectively converts the movement into a vertical movement of the second arm 14, and is locked to the first arm 12 and the second arm 14, respectively. The upper opening / closing member 7 and the lower opening / closing member 8 are moved up and down in opposite directions to open and close the suction port 2 on the front surface. At the start of the cooling or heating operation, FIGS. As shown in (B), the upper and lower opening and closing members 7, 8
The opening of the front opening 2 is greatly opened to increase the amount of suction air, and the lower opening / closing body 8 located above the outlet 2 allows the air blown out of the outlet 3 to flow through the inlet 2 of the front. To prevent it from being sucked directly into the
During normal operation, as shown in FIGS. 2 (A) and 2 (B), the upper and lower opening / closing members 7 and 8 serve as the suction port 2 on the front surface.
Is opened or closed to reduce the amount of intake air, thereby increasing the suction capacity of the intake air sucked from the intake port 2 particularly at the time of starting the cooling or heating operation. By providing harmony or providing the upper and lower opening and closing members 7 and 8 at the front (outside) of the suction port 2 on the front surface,
It is possible to prevent the air blown out from the outlet 3 from being sucked into the inlet 2 due to a short circuit, or to effectively prevent warm air staying near the ceiling from the inlet 2 on the upper surface during a heating operation. It becomes an air conditioner that can suck in and exchange heat efficiently.

[0017]

As described above, according to the present invention, especially at the start of the cooling or heating operation, the suction capacity of the suction air sucked from the suction port is improved, and the air blown out from the discharge port is short-circuited and sucked into the suction port. An air conditioner that prevents heat from being trapped and draws in warm air near the ceiling from a suction port during a heating operation to efficiently exchange heat.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an air conditioner showing a state in which an opening / closing body formed of a decorative plate for opening / closing a suction port at an upper front portion according to the present invention is opened, (A) is a perspective view, and (B) is a sectional view. It is.

FIG. 2 is an explanatory view of an air conditioner showing a state in which an opening / closing body formed of a decorative plate for opening and closing a suction port at an upper part of a front surface according to the present invention is closed, (A) is a perspective view, and (B) is a sectional view. It is.

FIG. 3 is an explanatory view of a main part of an air conditioner according to the present invention;
(A) is a perspective view of a driving device for driving the opening and closing body,
(B) is a side view.

FIG. 4 is a perspective view of an air conditioner according to a conventional example.

[Description of Signs] 1 Air conditioner main body 2 Inlet 3 Outlet 4 Heat exchanger 5 Blower fan 6 Wind direction change plate 7 Upper opening / closing body 7a First locking claw 8 Lower opening / closing body 8a Second locking claw 9 Drive motor (Stepping motor) 10 Drive gear 11 Rod 12 First arm 12a First tooth 13 Linking arm 13a Second tooth 13b Third tooth 14 Second arm 14a Fourth tooth 15 Intermediate gear

Claims (5)

[Claims] 1. A suction port is provided in a vertically central portion and an upper surface portion of a front surface of a main body, and an air outlet is provided in a lower portion of the front surface. A heat exchanger and an air blower are provided in an air passage connecting the air inlet and the air outlet. In the air conditioner provided with a fan, the suction port on the front surface is provided at an upper part thereof so as to be vertically divided into two parts, and is opened and closed by an opening / closing body formed of a decorative plate that moves up and down, and drives the opening / closing body. A driving unit provided with a driving motor, a driving shaft connected to the driving shaft of the driving motor, a rod having a pair of driving gears at both ends, and a first tooth meshing with the driving gear. And a pair of first arms that move upward and downward while being locked to the upper opening / closing body, and a second tooth portion that meshes with the drive gear at a base end portion, and moves up and down in parallel with the first arm. A pair of linking arms with third teeth at the tip, A pair of second arm with the fourth teeth engaged with the lower closing body facing the third teeth, as well as respectively meshed with these third tooth portion and the fourth tooth portion,
A linking portion comprising two intermediate gears meshed with each other, wherein the rotation of the drive shaft and the drive gear of the drive motor is converted into a vertical movement of the first arm having the first tooth portion. Converting the linking arm provided with the second tooth portion at the base end and the third tooth portion at the tip end into vertical movement,
The upper / lower body and the lower part are converted into vertical movement of the second arm by the intermediate gear meshed with the third tooth part and the fourth tooth part, respectively, and are locked to the first arm and the second arm, respectively. The opening and closing body is moved up and down in opposite directions to open and close the front suction port. At the start of the cooling or heating operation, the upper and lower opening and closing body opens the front suction port greatly to suction air. Along with increasing the amount, the lower opening / closing body located above the outlet prevents the air blown out of the outlet 3 from being directly sucked into the inlet on the front surface. An air conditioner characterized in that the suction port on the front face is opened or closed small by upper and lower opening and closing bodies to reduce the amount of suction air. 2. A projecting ridge at a lower end of the lower opening / closing body, which protrudes forward corresponding to the air outlet, and prevents short-circuit of air blown out from the air outlet to be sucked into the air inlet. The air conditioner according to claim 1, wherein is formed continuously. 3. The air conditioner according to claim 1, wherein the drive motor is a stepping motor. 4. A first locking portion for locking the first arm to the upper opening / closing body is formed continuously on upper and lower back sides of the upper opening / closing body corresponding to both ends of the first arm. Section L
Upper and lower back surfaces of the lower opening / closing body corresponding to both ends of the second arm, the second locking portions comprising a first locking claw shaped like a letter, and locking the second arm to the lower opening / closing body. A second locking claw having a substantially L-shaped cross section continuously formed on the side, and the first locking claw and the second locking claw are locked to both ends of the first arm and the second arm. The air conditioner according to claim 1 or 2, wherein 5. The first locking claw is formed continuously in the longitudinal direction on the upper and lower back sides of the upper opening and closing body, and the second locking claw is formed in the upper and lower back sides of the lower opening and closing body in a longitudinal direction. The air conditioner according to claim 4, wherein the air conditioner is formed continuously.